46295 + Interview Questions in Chemistry

1.	The raw materials used for the preparation of permutit are
Answer» The raw materials used for the preparation of permutit are

Discussion

2.	What is the correct order of decreasing acidic strengths?
Answer» What is the correct order of decreasing acidic strengths?

Discussion

3.	11.2 litre of a gas at STP weighs 14 g. The gas could not be
Answer» 11.2 litre of a gas at STP weighs 14 g. The gas could not be

Discussion

4.	The density of a gas is 2.85 at 90 cm pressure and50∘CWhat will be the density of gas at NTP?
Answer» The density of a gas is 2.85 at 90 cm pressure and $50^{\circ} C$ What will be the density of gas at NTP?

Discussion

5.	Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
Answer» Which one of the following four metals would be displaced from the solution of its salt by the other three metals?

Discussion

6.	Which of the following statements are correct I. Both LiCl and MgCl2 are soluble in ethanol II. Both LiCl and MgCl2 are deliquescent III. LiCl and MgCl2 forms hydrates like LiCl.8H2O and MgCl2.2H2O IV. NaHCO3 used as fire extinguisher
Answer» Which of the following statements are correct I. Both $L i C l$ and $M g C l_{2}$ are soluble in ethanol II. Both $L i C l$ and $M g C l_{2}$ are deliquescent III. $L i C l$ and $M g C l_{2}$ forms hydrates like $L i C l .8 H_{2} O$ and $M g C l_{2} .2 H_{2} O$ IV. $N a H C O_{3}$ used as fire extinguisher

6.

Which of the following statements are correct I. Both LiCl and MgCl2 are soluble in ethanol II. Both LiCl and MgCl2 are deliquescent III. LiCl and MgCl2 forms hydrates like LiCl.8H2O and MgCl2.2H2O IV. NaHCO3 used as fire extinguisher

Answer»

Which of the following statements are correct

I. Both $L i C l$ and $M g C l_{2}$ are soluble in ethanol

II. Both $L i C l$ and $M g C l_{2}$ are deliquescent

III. $L i C l$ and $M g C l_{2}$ forms hydrates like $L i C l .8 H_{2} O$ and $M g C l_{2} .2 H_{2} O$

IV. $N a H C O_{3}$ used as fire extinguisher

Discussion

7.	In which of the following chemical reactions, hydrogen gas is evolved?
Answer» In which of the following chemical reactions, hydrogen gas is evolved?

Discussion

8.	The best method to prepare cyclohexene from cyclohexanol is by using
Answer» The best method to prepare cyclohexene from cyclohexanol is by using

Discussion

9.	In the synthesis of ammonia from nitrogen and hydrogen gases, if 6×10−2 mol of hydrogen disappears in 10 min, the number of moles of ammonia formed in 0.3 minutes is:
Answer» In the synthesis of ammonia from nitrogen and hydrogen gases, if $6 \times 10^{- 2}$ mol of hydrogen disappears in $10 min$ , the number of moles of ammonia formed in $0.3$ minutes is:

Discussion

10.	What is the volume ratio of the product gases obtained from the decomposition of phosphorous pentachloride? PCl5(g)→PCl3(g)+Cl2(g)
Answer» What is the volume ratio of the product gases obtained from the decomposition of phosphorous pentachloride? $P C l_{5} (g) \to P C l_{3} (g) + C l_{2} (g)$

Discussion

11.	Uptake of mineral nutrients due to the difference in electropotential gradient without the use of metabolic energy is
Answer» Uptake of mineral nutrients due to the difference in electropotential gradient without the use of metabolic energy is

Discussion

12.	One mole of mixture of CH4 and air (containing 80%N2 20%O2 by volume) of a composition such that when underwent combustion gave maximum heat (assume combustion of only CH4. Then which of the statements are correct, regarding composition of initial mixture. (X presents mole fraction)
Answer» One mole of mixture of $C H_{4}$ and air (containing 80% $N_{2}$ 20% $O_{2}$ by volume) of a composition such that when underwent combustion gave maximum heat (assume combustion of only $C H_{4}$ . Then which of the statements are correct, regarding composition of initial mixture. (X presents mole fraction)

Discussion

13.	The ONO bond angle is maximum in
Answer» The $O N O$ bond angle is maximum in

Discussion

14.	In the following reaction, the major product is:
Answer» In the following reaction, the major product is:

Discussion

15.	At critical set of condition the value of compressibility factor is 1.5x the value of 'x' is
Answer» At critical set of condition the value of compressibility factor is $\frac{1.5}{x}$ the value of ' $x$ ' is

Discussion

16.	On treatment with chlorine in presence of sunlight, benzene gives the product
Answer» On treatment with chlorine in presence of sunlight, benzene gives the product

Discussion

17.	Drop wise addition of concentrated sulfuric acid to a mixture of sodium chloride and manganese dioxide gives
Answer» Drop wise addition of concentrated sulfuric acid to a mixture of sodium chloride and manganese dioxide gives

Discussion

18.	A colorless gas which burns with blue flame and reduces CuO to Cu is
Answer» A colorless gas which burns with blue flame and reduces CuO to Cu is

Discussion

19.	Why do we learning Quadratic equation ? It does have some practical application in our daily life ???
Answer» Why do we learning Quadratic equation ? It does have some practical application in our daily life ???

Discussion

20.	Which one of the following statements is incorrect?
Answer» Which one of the following statements is incorrect?

Discussion

21.	Select the compound with incorrect principal group:-
Answer» Select the compound with incorrect principal group:-

Discussion

22.	The shape of SF4 molecule is
Answer» The shape of $S F_{4}$ molecule is

Discussion

23.	Which of the following is a paramagnetic substance?
Answer» Which of the following is a paramagnetic substance?

Discussion

24.	To obtain drinking water, the clay particles present in colloidal form in water are removed by the action of
Answer» To obtain drinking water, the clay particles present in colloidal form in water are removed by the action of

Discussion

25.	An organic compound contains only Carbon, Hydrogen and Oxygen. It has about 66% of Carbon and 13.3% of Hydrogen. It has a vapour density of 37. The possible isomers of all types for this compound is .
Answer» An organic compound contains only Carbon, Hydrogen and Oxygen. It has about 66% of Carbon and 13.3% of Hydrogen. It has a vapour density of 37. The possible isomers of all types for this compound is .

Discussion

26.	The order of reactivity of carbonyl compounds for nucleophillic addition is:
Answer» The order of reactivity of carbonyl compounds for nucleophillic addition is:

Discussion

27.	The constancy of em ratio for electrons inspite of variation of gas present in the discharge tube or of the material of the cathode shows that
Answer» The constancy of $\frac{e}{m}$ ratio for electrons inspite of variation of gas present in the discharge tube or of the material of the cathode shows that

Discussion

28.	Which of the following cannot be formed as single major product by Wurtz's coupling reaction of an alkyl halide
Answer» Which of the following cannot be formed as single major product by Wurtz's coupling reaction of an alkyl halide

Discussion

29.	Sickle cell anemia is caused
Answer» Sickle cell anemia is caused

Discussion

30.	A vessel of 250 litre was filled with 0.01 mole of Sb2S3 and 0.01 mole of H2 to attain the equilibrium at 440 °C as Sb2S3(s)+3H2(g)⇌2Sb(s)+3H2S(g). After equilibrium, the H2S formed was analysed by dissolving it in water and treating with excess of Pb2+ to give 1.195 g of PbS as precipitate. What is the value of KC at 440 °C? (Molar mass of Pb= 207 gmol−1)
Answer» A vessel of 250 litre was filled with 0.01 mole of $S b_{2} S_{3}$ and 0.01 mole of $H_{2}$ to attain the equilibrium at $440 ° C$ as $S b_{2} S_{3} (s) + 3 H_{2} (g) ⇌ 2 S b (s) + 3 H_{2} S (g)$ . After equilibrium, the $H_{2} S$ formed was analysed by dissolving it in water and treating with excess of $P b^{2 +}$ to give $1.195 g$ of $P b S$ as precipitate. What is the value of $K_{C}$ at $440 ° C$ ? (Molar mass of $P b = 207 g m o l^{- 1}$ )

Discussion

31.	Which one is responsible for the opening of stomata?
Answer» Which one is responsible for the opening of stomata?

Discussion

32.	Of the four oxyacids of chlorine the strongest oxidising agent in dilute aqueous solution is
Answer» Of the four oxyacids of chlorine the strongest oxidising agent in dilute aqueous solution is

Discussion

33.	How do you convert the following: (i) Prop-1-ene to 1-fluoropropane (ii) Chlorobenzene to 2-chlorotoluene (iii) Ethanol to propanenitrile OR What happens when (i) n-butyl chloride is treated with alcoholic KOH? (ii) 2, 4, 6-trinitrochlorobenzene is subjected to hydrolysis? (iii) methyl chloride is treated with AgCN?
Answer» How do you convert the following: (i) Prop-1-ene to 1-fluoropropane (ii) Chlorobenzene to 2-chlorotoluene (iii) Ethanol to propanenitrile OR What happens when (i) n-butyl chloride is treated with alcoholic KOH? (ii) 2, 4, 6-trinitrochlorobenzene is subjected to hydrolysis? (iii) methyl chloride is treated with AgCN?

33.

How do you convert the following: (i) Prop-1-ene to 1-fluoropropane (ii) Chlorobenzene to 2-chlorotoluene (iii) Ethanol to propanenitrile OR What happens when (i) n-butyl chloride is treated with alcoholic KOH? (ii) 2, 4, 6-trinitrochlorobenzene is subjected to hydrolysis? (iii) methyl chloride is treated with AgCN?

Answer»

How do you convert the following:

(i) Prop-1-ene to 1-fluoropropane

(ii) Chlorobenzene to 2-chlorotoluene

(iii) Ethanol to propanenitrile

OR

What happens when

(i) n-butyl chloride is treated with alcoholic KOH?

(ii) 2, 4, 6-trinitrochlorobenzene is subjected to hydrolysis?

(iii) methyl chloride is treated with AgCN?

Discussion

34.	For the gaseous reaction, pA+qB⇌qC+pD, which of the following relationship is true?
Answer» For the gaseous reaction, $p A + q B ⇌ q C + p D$ , which of the following relationship is true?

Discussion

35.	When 262 g of xenon (atomic mass = 131) reacted completely with 152 g of fluorine (atomic mass = 19), a mixture of XeF2 and XeF6 was produced. The molar ratio XeF2 : XeF6 is :
Answer» When 262 g of xenon (atomic mass = 131) reacted completely with 152 g of fluorine (atomic mass = 19), a mixture of XeF $_{2}$ and XeF $_{6}$ was produced. The molar ratio XeF $_{2}$ : XeF $_{6}$ is :

Discussion

36.	What is the appropriate order of processes for the extraction of lead from Galena? A) Froth flotation B) Calcination C) Roasting D) Self Reduction E) Electrolytic Reduction F) Smelting
Answer» What is the appropriate order of processes for the extraction of lead from Galena? A) Froth flotation B) Calcination C) Roasting D) Self Reduction E) Electrolytic Reduction F) Smelting

Discussion

37.	When ethylene bromide is treated with Zn we get
Answer» When ethylene bromide is treated with Zn we get

37.

When ethylene bromide is treated with Zn we get

Answer»

When ethylene bromide is treated with Zn we get

Discussion

38.	A gas bubble from an explosion under water oscillates with a time period T which depends upon static pressure p, density of water ρ and the total energy of explosion E. Find the expression for the time period T. (where, k is a dimensionless constant)
Answer» A gas bubble from an explosion under water oscillates with a time period T which depends upon static pressure p, density of water $ρ$ and the total energy of explosion E. Find the expression for the time period T. (where, k is a dimensionless constant)

Discussion

39.	The correct statement(s) about the following compound H3C(OH)HC−CH=CH−CH(OH)CH3(X) is/are:
Answer» The correct statement(s) about the following compound $H_{3} C (O H) H C - C H = C H - C H (O H) C H_{3} (X)$ is/are:

Discussion

40.	Coupling of benzene diazonium chloride with 1–naphthol in alkaline medium will give:
Answer» Coupling of benzene diazonium chloride with 1–naphthol in alkaline medium will give:

Discussion

41.	Consider a sparingly soluble salt, zirconium phosphate [Zr3(PO4)4]. If molar solubility of zirconium phosphate is denoted by s and its solubility product by Ksp , then which of the following relationship holds true?
Answer» Consider a sparingly soluble salt, zirconium phosphate $[Z r_{3} (P O_{4})_{4}]$ . If molar solubility of zirconium phosphate is denoted by $s$ and its solubility product by $K_{s p}$ , then which of the following relationship holds true?

Discussion

42.	The predominant form of histamine present in human blood is: (pKa=6.0)
Answer» The predominant form of histamine present in human blood is: $(p K a = 6.0)$

Discussion

43.	The reagent needed to convert are:
Answer» The reagent needed to convert are:

Discussion

44.	The only correct combination for a biodegradable polymer is:
Answer» The only correct combination for a biodegradable polymer is:

Discussion

45.	At which of the four conditions, the density of Nitrogen will be the largest?
Answer» At which of the four conditions, the density of Nitrogen will be the largest?

Discussion

46.	Geometrical shape of XeO3
Answer» Geometrical shape of $X e O_{3}$

Discussion

47.	There is no. S – S bond in
Answer» There is no. S – S bond in

Discussion

48.	The IUPAC name of CH3−CH\|CH3−C\|CH3−CH\|CHO−CH2−CH2−CH3 is?
Answer» The IUPAC name of $C H_{3} - C H \| C H_{3} - C \| C H_{3} - C H \| C H O - C H_{2} - C H_{2} - C H_{3}$ is?

48.

The IUPAC name of CH3−CH|CH3−C|CH3−CH|CHO−CH2−CH2−CH3 is?

Answer»

The IUPAC name of

$C H_{3} - C H | C H_{3} - C | C H_{3} - C H | C H O - C H_{2} - C H_{2} - C H_{3}$ is?

Discussion

49.	The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [a0 is Bohr radius]
Answer» The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [ $a_{0}$ is Bohr radius]

Discussion

50.	Assertion : The chief sinks for the mineral elements are the older regions of the plant. Reason: Elements most readily mobilised are calcium, phosphorus, nitrogen and potassium.
Answer» Assertion : The chief sinks for the mineral elements are the older regions of the plant. Reason: Elements most readily mobilised are calcium, phosphorus, nitrogen and potassium.

50.

Assertion : The chief sinks for the mineral elements are the older regions of the plant. Reason: Elements most readily mobilised are calcium, phosphorus, nitrogen and potassium.

Answer»

Assertion : The chief sinks for the mineral elements are the older regions of the plant.

Reason: Elements most readily mobilised are calcium, phosphorus, nitrogen and potassium.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The raw materials used for the preparation of permutit are

What is the correct order of decreasing acidic strengths?

11.2 litre of a gas at STP weighs 14 g. The gas could not be

The density of a gas is 2.85 at 90 cm pressure and50∘CWhat will be the density of gas at NTP?

Which one of the following four metals would be displaced from the solution of its salt by the other three metals?

Which of the following statements are correct I. Both LiCl and MgCl2 are soluble in ethanol II. Both LiCl and MgCl2 are deliquescent III. LiCl and MgCl2 forms hydrates like LiCl.8H2O and MgCl2.2H2O IV. NaHCO3 used as fire extinguisher

In which of the following chemical reactions, hydrogen gas is evolved?

The best method to prepare cyclohexene from cyclohexanol is by using

In the synthesis of ammonia from nitrogen and hydrogen gases, if 6×10−2 mol of hydrogen disappears in 10 min, the number of moles of ammonia formed in 0.3 minutes is:

What is the volume ratio of the product gases obtained from the decomposition of phosphorous pentachloride? PCl5(g)→PCl3(g)+Cl2(g)

Uptake of mineral nutrients due to the difference in electropotential gradient without the use of metabolic energy is

One mole of mixture of CH4 and air (containing 80%N2 20%O2 by volume) of a composition such that when underwent combustion gave maximum heat (assume combustion of only CH4. Then which of the statements are correct, regarding composition of initial mixture. (X presents mole fraction)

The ONO bond angle is maximum in

In the following reaction, the major product is:

At critical set of condition the value of compressibility factor is 1.5x the value of 'x' is

On treatment with chlorine in presence of sunlight, benzene gives the product

Drop wise addition of concentrated sulfuric acid to a mixture of sodium chloride and manganese dioxide gives

A colorless gas which burns with blue flame and reduces CuO to Cu is

Why do we learning Quadratic equation ? It does have some practical application in our daily life ???

Which one of the following statements is incorrect?

Select the compound with incorrect principal group:-

The shape of SF4 molecule is

Which of the following is a paramagnetic substance?

To obtain drinking water, the clay particles present in colloidal form in water are removed by the action of

An organic compound contains only Carbon, Hydrogen and Oxygen. It has about 66% of Carbon and 13.3% of Hydrogen. It has a vapour density of 37. The possible isomers of all types for this compound is .

The order of reactivity of carbonyl compounds for nucleophillic addition is:

The constancy of em ratio for electrons inspite of variation of gas present in the discharge tube or of the material of the cathode shows that

Which of the following cannot be formed as single major product by Wurtz's coupling reaction of an alkyl halide

Sickle cell anemia is caused

Which one is responsible for the opening of stomata?

Of the four oxyacids of chlorine the strongest oxidising agent in dilute aqueous solution is

For the gaseous reaction, pA+qB⇌qC+pD, which of the following relationship is true?

When 262 g of xenon (atomic mass = 131) reacted completely with 152 g of fluorine (atomic mass = 19), a mixture of XeF2 and XeF6 was produced. The molar ratio XeF2 : XeF6 is :

What is the appropriate order of processes for the extraction of lead from Galena? A) Froth flotation B) Calcination C) Roasting D) Self Reduction E) Electrolytic Reduction F) Smelting

When ethylene bromide is treated with Zn we get

A gas bubble from an explosion under water oscillates with a time period T which depends upon static pressure p, density of water ρ and the total energy of explosion E. Find the expression for the time period T. (where, k is a dimensionless constant)

The correct statement(s) about the following compound H3C(OH)HC−CH=CH−CH(OH)CH3(X) is/are:

Coupling of benzene diazonium chloride with 1–naphthol in alkaline medium will give:

Consider a sparingly soluble salt, zirconium phosphate [Zr3(PO4)4]. If molar solubility of zirconium phosphate is denoted by s and its solubility product by Ksp , then which of the following relationship holds true?

The predominant form of histamine present in human blood is: (pKa=6.0)

The reagent needed to convert are:

The only correct combination for a biodegradable polymer is:

At which of the four conditions, the density of Nitrogen will be the largest?

Geometrical shape of XeO3

There is no. S – S bond in

The IUPAC name of CH3−CH|CH3−C|CH3−CH|CHO−CH2−CH2−CH3 is?

The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [a0 is Bohr radius]

Assertion : The chief sinks for the mineral elements are the older regions of the plant. Reason: Elements most readily mobilised are calcium, phosphorus, nitrogen and potassium.