46295 + Interview Questions in Chemistry

1.	The packing efficiency of the two dimensional square unit cell shown below is (take π=3.14):
Answer» The packing efficiency of the two dimensional square unit cell shown below is (take $π = 3.14$ ):

Discussion

2.	Match the items of Column I with items of Column II. Column I Column IIA.Antifreeze used in car engine1.Neutral ferric chlorideB.Solvent used in perfumes2.GlycerolC.Starting material for picric acid3.MethanolD.Wood spirit4PhenolE.Reagent used for detection of phenolic group5Ethylene glycolF.By product of soap industry used in cosmetics6.Ethanol
Answer» Match the items of Column I with items of Column II. $\begin{matrix} C o l u m n I & C o l u m n I I A . & A n t i f r e e z e u s e d i n c a r e n g i n e & 1. & N e u t r a l f e r r i c c h l o r i d e B . & S o l v e n t u s e d i n p e r f u m e s & 2. & G l y c e r o l C . & S t a r t i n g m a t e r i a l f o r p i c r i c a c i d & 3. & M e t h a n o l D . & W o o d s p i r i t & 4 & P h e n o l E . & R e a g e n t u s e d f o r d e t e c t i o n o f p h e n o l i c g r o u p & 5 & E t h y l e n e g l y c o l F . & B y p r o d u c t o f s o a p i n d u s t r y u s e d i n c o s m e t i c s & 6. & E t h a n o l \end{matrix}$

Discussion

3.	A carnot engine operating between temperature T1 and T2 has the efficiency of 16. When the temperature T2 is lowered by 62K, it efficiency becomes 13, Then temperature T1 and T2 respectively are
Answer» A carnot engine operating between temperature $T_{1}$ and $T_{2}$ has the efficiency of $\frac{1}{6}$ . When the temperature $T_{2}$ is lowered by 62K, it efficiency becomes $\frac{1}{3}$ , Then temperature $T_{1}$ and $T_{2}$ respectively are

Discussion

4.	Why do we name the structure as phenyldichloro''methane''. Why is it methane?
Answer» Why do we name the structure as phenyldichloro''methane''. Why is it methane?

Discussion

5.	Consider the reaction between hydrogen and oxygen gases to form water. Which of the following is/are not conserved in the reaction? 2H2(g) + O2(g) → 2H2O(l)
Answer» Consider the reaction between hydrogen and oxygen gases to form water. Which of the following is/are not conserved in the reaction? 2H₂(g) + O₂(g) → 2H₂O(l)

5.

Consider the reaction between hydrogen and oxygen gases to form water. Which of the following is/are not conserved in the reaction? 2H2(g) + O2(g) → 2H2O(l)

Answer»

Consider the reaction between hydrogen and oxygen gases to form water. Which of the following is/are not conserved in the reaction?

2H₂(g) + O₂(g) → 2H₂O(l)

Discussion

6.	What is observed when an external potential greater than the cell potential of the given galvanic cell is applied opposing it
Answer» What is observed when an external potential greater than the cell potential of the given galvanic cell is applied opposing it

Discussion

7.	Basis of life is:
Answer» Basis of life is:

Discussion

8.	Question 37 Explain why on addition of 1 mole of NaCl to 1L of water, the boiling point of water increases, while addition of 1 mole of methyl alcohol to 1 L of water decreases its boiling point.
Answer» Question 37 Explain why on addition of 1 mole of NaCl to 1L of water, the boiling point of water increases, while addition of 1 mole of methyl alcohol to 1 L of water decreases its boiling point.

Discussion

9.	At pH = 2, E∘Quinhydrone=1.30 V, EQuinhydrone will be:
Answer» At $p H$ = 2, $E_{Q u i n h y d r o n e}^{\circ} = 1.30 V$ , $E_{Q u i n h y d r o n e}$ will be:

Discussion

10.	The correct order of bond angles (smallest first) in H2O, NH3, BF3 and SiH4 is:
Answer» The correct order of bond angles (smallest first) in $H_{2} O, N H_{3}, B F_{3}$ and $S i H_{4}$ is:

Discussion

11.	Which of the following is not oxidised by O3?
Answer» Which of the following is not oxidised by $O_{3}$ ?

Discussion

12.	The decreasing order of N−O bond lengths in NO+2, NO−2 and NO−3 is:
Answer» The decreasing order of $N - O$ bond lengths in $N O_{2}^{+}$ , $N O_{2}^{-}$ and $N O_{3}^{-}$ is:

Discussion

13.	Which has greater second electron affinity : sulphur or oxygen? why?
Answer» Which has greater second electron affinity : sulphur or oxygen? why?

Discussion

14.	Why is it safer to use soap from the environmental point of view?
Answer» Why is it safer to use soap from the environmental point of view?

Discussion

15.	The maximum bond angle is present in :
Answer» The maximum bond angle is present in :

Discussion

16.	Consider the reaction A → B, graph between half life t1/2 and initial concentration (a) of the reactant is Hence graph between −d[A]dt and time will be
Answer» Consider the reaction A $\to$ B, graph between half life $t_{1 / 2}$ and initial concentration (a) of the reactant is Hence graph between $- \frac{d [A]}{d t}$ and time will be

Discussion

17.	I saw all the videos from this chapter but as soon as I see the problems nothing strikes me. How to get these problems
Answer» I saw all the videos from this chapter but as soon as I see the problems nothing strikes me. How to get these problems

Discussion

18.	What will be the minimum pressure required to compress 500 dm3 of air at 1 bar to 200 dm3 at 30∘
Answer» What will be the minimum pressure required to compress $500 d m^{3}$ of air at 1 bar to $200 d m^{3}$ at $30^{\circ}$

Discussion

19.	The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be (Given ionization energy of H = 2.18 × 10−18 J atom−1 and h = 6.625 × 10−34 Js)
Answer» The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be (Given ionization energy of $H$ = $2.18 \times 10^{- 18} J a t o m^{- 1}$ and $h$ = $6.625 \times 10^{- 34} J s$ )

19.

The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be (Given ionization energy of H = 2.18 × 10−18 J atom−1 and h = 6.625 × 10−34 Js)

Answer»

The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be

(Given ionization energy of $H$ = $2.18 \times 10^{- 18} J a t o m^{- 1}$ and $h$ = $6.625 \times 10^{- 34} J s$ )

Discussion

20.	In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005 %. Certainity with which the position of the electron can be located is (h = 6.6 × 10−34 kg m2 s−1,mass of electron, em = 9.1 × 10−31 kg)
Answer» In an atom, an electron is moving with a speed of $600 m / s$ with an accuracy of 0.005 %. Certainity with which the position of the electron can be located is ( $h = 6.6 \times 10^{- 34} k g m^{2} s^{- 1}$ ,mass of electron, $e^{m} = 9.1 \times 10^{- 31} k g$ )

20.

In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005 %. Certainity with which the position of the electron can be located is (h = 6.6 × 10−34 kg m2 s−1,mass of electron, em = 9.1 × 10−31 kg)

Answer»

In an atom, an electron is moving with a speed of $600 m / s$ with an accuracy of 0.005 %. Certainity with which the position of the electron can be located is

( $h = 6.6 \times 10^{- 34} k g m^{2} s^{- 1}$ ,mass of electron, $e^{m} = 9.1 \times 10^{- 31} k g$ )

Discussion

21.	Will the limiting reagents always be the one which is in lesser quantity?
Answer» Will the limiting reagents always be the one which is in lesser quantity?

Discussion

22.	Which of the following will not decolourise bromine water?
Answer» Which of the following will not decolourise bromine water?

Discussion

23.	A metal crystallises with a F.C.C. lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is
Answer» A metal crystallises with a F.C.C. lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

Discussion

24.	The densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm-3 , respectively. If the standard free energy difference (∆Gº) is equal to 1895 J mol–1, the pressure at which graphite will be transformed into diamond at 298 K is A. 9.92 × 105 B. 9.92 × 108 C. 9.92 × 10^7 D. 9.92 × 106 All options' unit is Pascal ----------------------------------------------------------------------------B-) :-D :-) What should be the answer of this question according to you and why? Please explain in detail.
Answer» The densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm^-3, respectively. If the standard free energy difference (∆Gº) is equal to 1895 J mol–1, the pressure at which graphite will be transformed into diamond at 298 K is A. 9.92 × 10⁵ B. 9.92 × 10^{8 C. 9.92 × 10^7} D. 9.92 × 10^{6 All options' unit is Pascal ----------------------------------------------------------------------------B-) :-D :-) What should be the answer of this question according to you and why? Please explain in detail.}

Discussion

25.	What product is formed on disproportionation of H3PO3?
Answer» What product is formed on disproportionation of H₃PO₃?

Discussion

26.	The correct order of relative stability of half filled and completely filled sub-shell is
Answer» The correct order of relative stability of half filled and completely filled sub-shell is

Discussion

27.	Which of the nitrogen of histidine is first protonated ?
Answer» Which of the nitrogen of histidine is first protonated ?

Discussion

28.	∧∘m(NH4OH) is equal to
Answer» $\land_{m}^{\circ} (N H_{4} O H)$ is equal to

Discussion

29.	The correct order of leaving group ability is:
Answer» The correct order of leaving group ability is:

Discussion

30.	how C=O bond having a highest bond energy
Answer» how C=O bond having a highest bond energy

Discussion

31.	Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range 500-800 K.
Answer» Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range 500-800 K.

Discussion

32.	Why is organic chemistry studied as a separate branch of chemistry?
Answer» Why is organic chemistry studied as a separate branch of chemistry?

Discussion

33.	A dilute solution Contains “x” moles of solute “A” in 1 kg of solvent with molal elevation constant kb. The solute dimerises in the solution according to the following equation. The degree of association is (α) 2A⇌A2 The von’t Hoff factor will be
Answer» A dilute solution Contains “x” moles of solute “A” in 1 kg of solvent with molal elevation constant kb. The solute dimerises in the solution according to the following equation. The degree of association is $(α)$ $2 A ⇌ A_{2}$ The von’t Hoff factor will be

33.

A dilute solution Contains “x” moles of solute “A” in 1 kg of solvent with molal elevation constant kb. The solute dimerises in the solution according to the following equation. The degree of association is (α) 2A⇌A2 The von’t Hoff factor will be

Answer»

A dilute solution Contains “x” moles of solute “A” in 1 kg of solvent with molal elevation constant kb. The solute dimerises in the solution according to the following equation. The degree of association is $(α)$
$2 A ⇌ A_{2}$

The von’t Hoff factor will be

Discussion

34.	H-bonding is maximum in _____
Answer» H-bonding is maximum in _____

Discussion

35.	Which has more electrical conductivity whether the metallic hydrides or its corresponding parent metals ?
Answer» Which has more electrical conductivity whether the metallic hydrides or its corresponding parent metals ?

Discussion

36.	In the reaction x + y giving product p the reaction rate is tripled when the concentration of x is increased by 3 times without changing the concentration of y.The reaction rate gets doubled when the concentration of y is increased by 4 times without changing the concentration of x. Calculate the order of reaction with respect to x and y and also the overall order of the reaction.
Answer» In the reaction x + y giving product p the reaction rate is tripled when the concentration of x is increased by 3 times without changing the concentration of y.The reaction rate gets doubled when the concentration of y is increased by 4 times without changing the concentration of x. Calculate the order of reaction with respect to x and y and also the overall order of the reaction.

Discussion

37.	Determine the value of ∆H and ∆U for the reversible isothermal evaporation of 90.0g of water at 100°C. Assume that water vapour behave as am ideal gas and heat of eveporation of water is 540cal. MY PROBLEM Only tell me How ∆H is calculated here, because if I know∆H then I can use the equation ∆H = ∆U + nRT In my book it is given that ∆H = 90.0 x 540 = 48600 cal But I want to know that why they have multipled the mass to heat of eveporation to find out ∆H
Answer» Determine the value of ∆H and ∆U for the reversible isothermal evaporation of 90.0g of water at 100°C. Assume that water vapour behave as am ideal gas and heat of eveporation of water is 540cal. MY PROBLEM Only tell me How ∆H is calculated here, because if I know∆H then I can use the equation ∆H = ∆U + nRT In my book it is given that ∆H = 90.0 x 540 = 48600 cal But I want to know that why they have multipled the mass to heat of eveporation to find out ∆H

37.

Determine the value of ∆H and ∆U for the reversible isothermal evaporation of 90.0g of water at 100°C. Assume that water vapour behave as am ideal gas and heat of eveporation of water is 540cal. MY PROBLEM Only tell me How ∆H is calculated here, because if I know∆H then I can use the equation ∆H = ∆U + nRT In my book it is given that ∆H = 90.0 x 540 = 48600 cal But I want to know that why they have multipled the mass to heat of eveporation to find out ∆H

Answer»

Determine the value of ∆H and ∆U for the reversible isothermal evaporation of 90.0g of water at 100°C. Assume that water vapour behave as am ideal gas and heat of eveporation of water is 540cal.

MY PROBLEM

Only tell me How ∆H is calculated here, because if I know∆H then I can use the equation

∆H = ∆U + nRT

In my book it is given that

∆H = 90.0 x 540

= 48600 cal

But I want to know that why they have multipled the mass to heat of eveporation to find out ∆H

Discussion

38.	(i)Draw the geometrical isomers of complex [Co(en)2Cl2]+. (ii) On the basis of crystal field teory, write the electronic configuration for d4 ion if Δ0>P. (iii) [NiCl4]2− is paramagnetic while [Ni(CO)4] is diamagnetic, though both are tetrahedral. Why? (Atomic number of Ni =28)
Answer» (i)Draw the geometrical isomers of complex $[C o (e n)_{2} C l_{2}]^{+} .$ (ii) On the basis of crystal field teory, write the electronic configuration for $d^{4}$ ion if $Δ_{0} > P .$ (iii) $[N i C l_{4}]^{2 -}$ is paramagnetic while $[N i (C O)_{4}]$ is diamagnetic, though both are tetrahedral. Why? (Atomic number of Ni =28)

Discussion

39.	Formaldehyde reacts with ammonia to give
Answer» Formaldehyde reacts with ammonia to give

Discussion

40.	A thermodynamic state function is a quantity (i) used to determine heat changes (ii)whose value is independent of path (iii) used to determine pressure volume work (iv) whose value depends on temperature only.
Answer» A thermodynamic state function is a quantity (i) used to determine heat changes (ii)whose value is independent of path (iii) used to determine pressure volume work (iv) whose value depends on temperature only.

Discussion

41.	Consider the products formed in following reaction: If the number of optically active compounds formed are x, and the number of meso compound(s) formed is y then what is the value of (x-y)?
Answer» Consider the products formed in following reaction: If the number of optically active compounds formed are x, and the number of meso compound(s) formed is y then what is the value of (x-y)?

Discussion

42.	10 L of a N2HCl solution is heated in a beaker. It was observed that when the volume of the solution was reduced to 6 L, 32.5 g of HCl is lost. Calculate the normality of the new solution.
Answer» $10 L$ of a $\frac{N}{2} H C l$ solution is heated in a beaker. It was observed that when the volume of the solution was reduced to $6 L$ , $32.5 g$ of $H C l$ is lost. Calculate the normality of the new solution.

Discussion

43.	What is the heat of formation of CS2, if the heats of combustion of C,S and CS2 are x, y and z kJ mol−1 ?
Answer» What is the heat of formation of $C S_{2}$ , if the heats of combustion of $C, S$ and $C S_{2}$ are x, y and z kJ mol $^{- 1}$ ?

Discussion

44.	The initial rate of hydrolysis of methyl acetate (1M) by a weak acid (HA, 1M) is 1/100th of that of a strong acid (HX, 1M), at 25oC. The Ka of HA is
Answer» The initial rate of hydrolysis of methyl acetate (1M) by a weak acid (HA, 1M) is 1/100th of that of a strong acid (HX, 1M), at $25^{o} C .$ The $K_{a}$ of HA is

Discussion

45.	Which of the following statement is true?
Answer» Which of the following statement is true?

Discussion

46.	(a) Account for the following: (i) Interhalogens are more reactive than pure halogens. (ii) N2 is less reactive at room temperature. (iii) Reducing character increases from NH3 to BiH3. (b) Draw the structures of the following: (i) H4P2O7 (Pyrophosphoric acid) (ii) XeF4 OR (a) Which poisonous gas is evolved when white phosphorus is heated with conc. NaOH solution? Write the chemical equation involved. (b) Which noble gas has the lowest boiling point? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d) What happens when H3PO3 is heated? (e) Complete the equation: PbS+O3→
Answer» (a) Account for the following: (i) Interhalogens are more reactive than pure halogens. (ii) $N_{2}$ is less reactive at room temperature. (iii) Reducing character increases from $N H_{3} t o B i H_{3}$ . (b) Draw the structures of the following: (i) $H_{4} P_{2} O_{7}$ (Pyrophosphoric acid) (ii) $X e F_{4}$ OR (a) Which poisonous gas is evolved when white phosphorus is heated with conc. NaOH solution? Write the chemical equation involved. (b) Which noble gas has the lowest boiling point? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d) What happens when $H_{3} P O_{3}$ is heated? (e) Complete the equation: $P b S + O_{3} \to$

46.

(a) Account for the following: (i) Interhalogens are more reactive than pure halogens. (ii) N2 is less reactive at room temperature. (iii) Reducing character increases from NH3 to BiH3. (b) Draw the structures of the following: (i) H4P2O7 (Pyrophosphoric acid) (ii) XeF4 OR (a) Which poisonous gas is evolved when white phosphorus is heated with conc. NaOH solution? Write the chemical equation involved. (b) Which noble gas has the lowest boiling point? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d) What happens when H3PO3 is heated? (e) Complete the equation: PbS+O3→

Answer»

(a) Account for the following:

(i) Interhalogens are more reactive than pure halogens.

(ii) $N_{2}$ is less reactive at room temperature.

(iii) Reducing character increases from $N H_{3} t o B i H_{3}$ .

(b) Draw the structures of the following:

(i) $H_{4} P_{2} O_{7}$ (Pyrophosphoric acid)

(ii) $X e F_{4}$

OR

(a) Which poisonous gas is evolved when white phosphorus is heated with conc. NaOH solution? Write the chemical equation involved.

(b) Which noble gas has the lowest boiling point?

(c) Fluorine is a stronger oxidising agent than chlorine. Why?

(d) What happens when $H_{3} P O_{3}$ is heated?

(e) Complete the equation:

$P b S + O_{3} \to$

Discussion

47.	Propan-1-ol can be prepared from propene by [AIIMS 2003]
Answer» Propan-1-ol can be prepared from propene by [AIIMS 2003]

Discussion

48.	Initiation codon is
Answer» Initiation codon is

Discussion

49.	Which of the following solutions is isotonic with 0.3 N Al2(SO4)3 (100% soluble) solution at given temperature?
Answer» Which of the following solutions is isotonic with $0.3 N A l_{2} (S O_{4})_{3}$ ( $100 %$ soluble) solution at given temperature?

Discussion

50.	A solute is dissolved in 0.1 litre of a solution which develops an osmotic pressure of 1.23 atm at 27°C. The molecular mass of the substance is:
Answer» A solute is dissolved in 0.1 litre of a solution which develops an osmotic pressure of 1.23 atm at 27°C. The molecular mass of the substance is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The packing efficiency of the two dimensional square unit cell shown below is (take π=3.14):

A carnot engine operating between temperature T1 and T2 has the efficiency of 16. When the temperature T2 is lowered by 62K, it efficiency becomes 13, Then temperature T1 and T2 respectively are

Why do we name the structure as phenyldichloro''methane''. Why is it methane?

Consider the reaction between hydrogen and oxygen gases to form water. Which of the following is/are not conserved in the reaction? 2H2(g) + O2(g) → 2H2O(l)

What is observed when an external potential greater than the cell potential of the given galvanic cell is applied opposing it

Basis of life is:

Question 37 Explain why on addition of 1 mole of NaCl to 1L of water, the boiling point of water increases, while addition of 1 mole of methyl alcohol to 1 L of water decreases its boiling point.

At pH = 2, E∘Quinhydrone=1.30 V, EQuinhydrone will be:

The correct order of bond angles (smallest first) in H2O, NH3, BF3 and SiH4 is:

Which of the following is not oxidised by O3?

The decreasing order of N−O bond lengths in NO+2, NO−2 and NO−3 is:

Which has greater second electron affinity : sulphur or oxygen? why?

Why is it safer to use soap from the environmental point of view?

The maximum bond angle is present in :

Consider the reaction A → B, graph between half life t1/2 and initial concentration (a) of the reactant is Hence graph between −d[A]dt and time will be

I saw all the videos from this chapter but as soon as I see the problems nothing strikes me. How to get these problems

What will be the minimum pressure required to compress 500 dm3 of air at 1 bar to 200 dm3 at 30∘

The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be (Given ionization energy of H = 2.18 × 10−18 J atom−1 and h = 6.625 × 10−34 Js)

In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005 %. Certainity with which the position of the electron can be located is (h = 6.6 × 10−34 kg m2 s−1,mass of electron, em = 9.1 × 10−31 kg)

Will the limiting reagents always be the one which is in lesser quantity?

Which of the following will not decolourise bromine water?

A metal crystallises with a F.C.C. lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

What product is formed on disproportionation of H3PO3?

The correct order of relative stability of half filled and completely filled sub-shell is

Which of the nitrogen of histidine is first protonated ?

∧∘m(NH4OH) is equal to

The correct order of leaving group ability is:

how C=O bond having a highest bond energy

Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range 500-800 K.

Why is organic chemistry studied as a separate branch of chemistry?

A dilute solution Contains “x” moles of solute “A” in 1 kg of solvent with molal elevation constant kb. The solute dimerises in the solution according to the following equation. The degree of association is (α) 2A⇌A2 The von’t Hoff factor will be

H-bonding is maximum in _____

Which has more electrical conductivity whether the metallic hydrides or its corresponding parent metals ?

(i)Draw the geometrical isomers of complex [Co(en)2Cl2]+. (ii) On the basis of crystal field teory, write the electronic configuration for d4 ion if Δ0&gt;P. (iii) [NiCl4]2− is paramagnetic while [Ni(CO)4] is diamagnetic, though both are tetrahedral. Why? (Atomic number of Ni =28)

Formaldehyde reacts with ammonia to give

A thermodynamic state function is a quantity (i) used to determine heat changes (ii)whose value is independent of path (iii) used to determine pressure volume work (iv) whose value depends on temperature only.

Consider the products formed in following reaction: If the number of optically active compounds formed are x, and the number of meso compound(s) formed is y then what is the value of (x-y)?

10 L of a N2HCl solution is heated in a beaker. It was observed that when the volume of the solution was reduced to 6 L, 32.5 g of HCl is lost. Calculate the normality of the new solution.

What is the heat of formation of CS2, if the heats of combustion of C,S and CS2 are x, y and z kJ mol−1 ?

The initial rate of hydrolysis of methyl acetate (1M) by a weak acid (HA, 1M) is 1/100th of that of a strong acid (HX, 1M), at 25oC. The Ka of HA is

Which of the following statement is true?

Propan-1-ol can be prepared from propene by [AIIMS 2003]

Initiation codon is

Which of the following solutions is isotonic with 0.3 N Al2(SO4)3 (100% soluble) solution at given temperature?

A solute is dissolved in 0.1 litre of a solution which develops an osmotic pressure of 1.23 atm at 27°C. The molecular mass of the substance is:

(i)Draw the geometrical isomers of complex [Co(en)2Cl2]+. (ii) On the basis of crystal field teory, write the electronic configuration for d4 ion if Δ0>P. (iii) [NiCl4]2− is paramagnetic while [Ni(CO)4] is diamagnetic, though both are tetrahedral. Why? (Atomic number of Ni =28)