46295 + Interview Questions in Chemistry

1.	If a→ and b→ are two non-zero vectors, then the projection of a→ on b→ is _____________.
Answer» If $\vec{a} and \vec{b}$ are two non-zero vectors, then the projection of $\vec{a} on \vec{b}$ is _____________.

Discussion

2.	when benzene is treated with isobutyl bromide in the presence of AlCl_3 it mainly gives 1) tertiary butyl benzene 2) isobutyl benzene 3) n-butyl benzene 4) Secondary butyl benzen 4
Answer» when benzene is treated with isobutyl bromide in the presence of AlCl_3 it mainly gives 1) tertiary butyl benzene 2) isobutyl benzene 3) n-butyl benzene 4) Secondary butyl benzen 4

Discussion

3.	ntA compound exists in the gaseous phase both as monomer(A) and dimer(A2). The atomic mass of A is 48 and molecular mass of A2 is 96. In an experiment 96g of the compound was confined in a vessel of volume 33.6 L and heated to 273*C. The final pressure developed if compound as dimer to the extent of 50% by weight under those conditions will be ?n
Answer» ntA compound exists in the gaseous phase both as monomer(A) and dimer(A2). The atomic mass of A is 48 and molecular mass of A2 is 96. In an experiment 96g of the compound was confined in a vessel of volume 33.6 L and heated to 273*C. The final pressure developed if compound as dimer to the extent of 50% by weight under those conditions will be ?n

Discussion

4.	Order of decreasing basic strengths of halides is :
Answer» Order of decreasing basic strengths of halides is :

Discussion

5.	Use a connector to make the sentences sound better. Tushar boasts about his physical strength. He cannot perform a single push up.
Answer» Use a connector to make the sentences sound better. Tushar boasts about his physical strength. He cannot perform a single push up.

5.

Use a connector to make the sentences sound better. Tushar boasts about his physical strength. He cannot perform a single push up.

Answer»

Use a connector to make the sentences sound better.

Tushar boasts about his physical strength. He cannot perform a single push up.

Discussion

6.	total no of angular node present in 3dx^2-y^2 and 3dz^2 orbital
Answer» total no of angular node present in 3dx^2-y^2 and 3dz^2 orbital

Discussion

7.	The IUPAC name for the complex [Co(NO2)(NH3)5]Cl2 is
Answer» The IUPAC name for the complex $[C o (N O_{2}) (N H_{3})_{5}] C l_{2}$ is

Discussion

8.	Define the following terms : (i) Molar conductivity (∧m) (ii) Secondary batteries
Answer» Define the following terms : (i) Molar conductivity $(\land_{m})$ (ii) Secondary batteries

Discussion

9.	10 g of hydrogen and 28 g nitrogen are allowed to react and the compound produced (assume complete forward reaction) is dissolved in one litre of water to produce a basic solution. The molarity of solution is:
Answer» 10 g of hydrogen and 28 g nitrogen are allowed to react and the compound produced (assume complete forward reaction) is dissolved in one litre of water to produce a basic solution. The molarity of solution is:

Discussion

10.	What is bent t shape
Answer» What is bent t shape

Discussion

11.	an element occurs in BCC structure with edge length of 288pm the density of element is 7.2 how many atoms of the element does 208g of the eleme
Answer» an element occurs in BCC structure with edge length of 288pm the density of element is 7.2 how many atoms of the element does 208g of the eleme

Discussion

12.	Why water molecule does not form hydrogen bonding in gaseous state
Answer» Why water molecule does not form hydrogen bonding in gaseous state

Discussion

13.	number of isomers for benzoic acid
Answer» number of isomers for benzoic acid

Discussion

14.	Predict the product of the given rearrangement reaction.
Answer» Predict the product of the given rearrangement reaction.

Discussion

15.	In the gulabjamun experiment that you have seen, which do you think is the adsorbate and which is the adsorbent?
Answer» In the gulabjamun experiment that you have seen, which do you think is the adsorbate and which is the adsorbent?

15.

In the gulabjamun experiment that you have seen, which do you think is the adsorbate and which is the adsorbent?

Answer»

In the gulabjamun experiment that you have seen, which do you think is the adsorbate and which is the adsorbent?

Discussion

16.	HOW TO DIFFERENTIATE BETWEEN STEREO AND CHIRAL CENTRES AND FIND NO. OF STEREOISOMER
Answer» HOW TO DIFFERENTIATE BETWEEN STEREO AND CHIRAL CENTRES AND FIND NO. OF STEREOISOMER

Discussion

17.	calculate mass of oxygen required to produce 495 dm3 of carbon di oxide on burning ethan
Answer» calculate mass of oxygen required to produce 495 dm3 of carbon di oxide on burning ethan

Discussion

18.	The rate of the reaction, 2A + B = products is given by the rate expression rate = k[A]1.5 [B]0.5. If A is 2 molar and B is 100 molar then the order of reaction will be
Answer» The rate of the reaction, 2A + B = products is given by the rate expression rate = k[A]1.5 [B]0.5. If A is 2 molar and B is 100 molar then the order of reaction will be

Discussion

19.	Question 57 Explain the terms ideal and non-ideal solutions in the light of forces of interactions operating between molecules in liquid solutions.
Answer» Question 57 Explain the terms ideal and non-ideal solutions in the light of forces of interactions operating between molecules in liquid solutions.

Discussion

20.	On analysis it was found that the black oxide of coppe and red oxide of copper contains 80% and 89% of copper respectively. Show that this data is in accordance with law of multiple proportions. Give me complt solution.
Answer» On analysis it was found that the black oxide of coppe and red oxide of copper contains 80% and 89% of copper respectively. Show that this data is in accordance with law of multiple proportions. Give me complt solution.

Discussion

21.	Find the incorrect statement:
Answer» Find the incorrect statement:

Discussion

22.	Consider the following chlorides: The correct order of SN1 reactivity is
Answer» Consider the following chlorides: The correct order of $S_{N} 1$ reactivity is

Discussion

23.	The right order of the solubility of sulphates alkaline earth metals is:
Answer» The right order of the solubility of sulphates alkaline earth metals is:

Discussion

24.	The hybridization of iodine in IF5 is:
Answer» The hybridization of iodine in $I F_{5}$ is:

Discussion

25.	If Cu2+ and Cu+ are present in sulphide ion of Cu0. 83S0.80 . Then how to find the ratio of Cu+ and Cu2+ ions in this compound
Answer» If Cu2+ and Cu+ are present in sulphide ion of Cu0. 83S0.80 . Then how to find the ratio of Cu+ and Cu2+ ions in this compound

Discussion

26.	Reactivity of metal increases with increase in temperature because:
Answer» Reactivity of metal increases with increase in temperature because:

Discussion

27.	If the ionic product of water at 40oC is 4×10−14. The concentration of OH− ions in water at 40∘C is:
Answer» If the ionic product of water at $40^{o} C$ is $4 \times 10^{- 14}$ . The concentration of $O H^{-}$ ions in water at $40^{\circ} C$ is:

Discussion

28.	Calculate the wavelength for the emission transition if it starts from the orbit having radius 1.3225 nm and ends at 211.6 pm. Name the series to which this transition belongs and the region of the spectrum.
Answer» Calculate the wavelength for the emission transition if it starts from the orbit having radius 1.3225 nm and ends at 211.6 pm. Name the series to which this transition belongs and the region of the spectrum.

Discussion

29.	A metal X on heating in nitrogen gas gives Y. Y on treatment with H2O gives a colourless gas which when passed through CuSO4 solution gives a blue colour. Y is
Answer» A metal X on heating in nitrogen gas gives Y. Y on treatment with $H_{2} O$ gives a colourless gas which when passed through $C u S O_{4}$ solution gives a blue colour. Y is

Discussion

30.	29. what products are formed when 1,3-methylbenzene is treated with Br2 in the presence of FeBr3?
Answer» 29. what products are formed when 1,3-methylbenzene is treated with Br2 in the presence of FeBr3?

Discussion

31.	ntXeF6 +SbF3---------------------------------->A cation + B anionn ntIncorrect statement for above changes isn nt1. XeF6 act as F- donorn nt2. Hybridisation state of central atom in cationic part is sp3d2n nt3. Anionic part is isostructural with PCl6 -n nt4. Both cation and anion have identical shapen ntAlso explain the reaction.n
Answer» ntXeF6 +SbF3---------------------------------->A cation + B anionn ntIncorrect statement for above changes isn nt1. XeF6 act as F- donorn nt2. Hybridisation state of central atom in cationic part is sp3d2n nt3. Anionic part is isostructural with PCl6 -n nt4. Both cation and anion have identical shapen ntAlso explain the reaction.n

Discussion

32.	A coordination compound CrCl3.H2O precipitates silver chloride when treated with silver nitrate. The molar conductance of its soltuion corresponds to a total of two ions. Write structural formula of the compound and name it.
Answer» A coordination compound $C r C l_{3} . H_{2} O$ precipitates silver chloride when treated with silver nitrate. The molar conductance of its soltuion corresponds to a total of two ions. Write structural formula of the compound and name it.

Discussion

33.	HCl does not behave as an acid in which of the following solvents?
Answer» $H C l$ does not behave as an acid in which of the following solvents?

Discussion

34.	Count the number of stereocentres in the molecule given below:
Answer» Count the number of stereocentres in the molecule given below:

Discussion

35.	The stability of Me2C=CH2 is more than that of MeCH2CH=CH2 due to:
Answer» The stability of $M e_{2} C = C H_{2}$ is more than that of $M e C H_{2} C H = C H_{2}$ due to:

Discussion

36.	Q.1 what will be the concentration in molarity of a solution on dissolving 2 moles of solute in 500ml solution? Q.2 atomic mass of Ca is 40. the mass of 2.5g atoms of Ca is?
Answer» Q.1 what will be the concentration in molarity of a solution on dissolving 2 moles of solute in 500ml solution? Q.2 atomic mass of Ca is 40. the mass of 2.5g atoms of Ca is?

Discussion

37.	why potassium have valence of 3 and 5 bot
Answer» why potassium have valence of 3 and 5 bot

Discussion

38.	What is the major product of the following reaction sequence ?
Answer» What is the major product of the following reaction sequence ?

Discussion

39.	ntIf activation energy of reaction decreases by 5.727kJ when catalyst is used at 27^°C the increase in rate of reaction is A18 times B 10 times C 8 times D 20 timesn
Answer» ntIf activation energy of reaction decreases by 5.727kJ when catalyst is used at 27^°C the increase in rate of reaction is A18 times B 10 times C 8 times D 20 timesn

Discussion

40.	An ether is more volatile than a alcohol having the same molecular formula . This is due to 1) alcohols having resonace structures 2) intermolecular hydrogen bonding in ethers 3) intermolecular hydrogen bonding in alcohols 4) dipolar character of ethers
Answer» An ether is more volatile than a alcohol having the same molecular formula . This is due to 1) alcohols having resonace structures 2) intermolecular hydrogen bonding in ethers 3) intermolecular hydrogen bonding in alcohols 4) dipolar character of ethers

40.

An ether is more volatile than a alcohol having the same molecular formula . This is due to 1) alcohols having resonace structures 2) intermolecular hydrogen bonding in ethers 3) intermolecular hydrogen bonding in alcohols 4) dipolar character of ethers

Answer»

An ether is more volatile than a alcohol having the same molecular formula . This is due to

1) alcohols having resonace structures

2) intermolecular hydrogen bonding in ethers

3) intermolecular hydrogen bonding in alcohols

4) dipolar character of ethers

Discussion

41.	what is disubstitution benzene compounds?
Answer» what is disubstitution benzene compounds?

Discussion

42.	{36. If 340 g of mixture of N_2 and H_2 in the cirrect ratii gave a 20}% yield of NH_3. The produced mass of NH_3 would be
Answer» {36. If 340 g of mixture of N_2 and H_2 in the cirrect ratii gave a 20}% yield of NH_3. The produced mass of NH_3 would be

Discussion

43.	The valence shell electronic configuration of group 18 element is:
Answer» The valence shell electronic configuration of group 18 element is:

Discussion

44.	he pertentage of hydrogen in water and hydrogen peroxide is 11.1 and 5.9 respectively. These figures iliustate
Answer» he pertentage of hydrogen in water and hydrogen peroxide is 11.1 and 5.9 respectively. These figures iliustate

Discussion

45.	Theresistance of a conductivity cell containing 0.001M KCl solution at298 K is 1500 Ω. What is the cell constant if conductivity of0.001M KCl solution at 298 K is 0.146 × 10−3S cm−1.
Answer» The resistance of a conductivity cell containing 0.001M KCl solution at 298 K is 1500 Ω. What is the cell constant if conductivity of 0.001M KCl solution at 298 K is 0.146 × 10⁻³ S cm⁻¹.

Discussion

46.	If the ionic equivalent conductivities of K+Al3+,and SO2−4 ions are 4, 4, and 1 Scm2Eq−1 , respectively. Calculate the value of ∧0eq for Potash alum (K2SO4.Al2(SO4)3.24H2O)
Answer» If the ionic equivalent conductivities of $K^{+} A l^{3 +}, and S O_{4}^{2 -}$ ions are 4, 4, and 1 $S c m^{2} E q^{- 1}$ , respectively. Calculate the value of $\land_{e q}^{0}$ for Potash alum $(K_{2} S O_{4} . A l_{2} {(S O_{4})}_{3} . 24 H_{2} O)$

Discussion

47.	Four pairs of species are given. In which of the pairs is the second species more stable than the first?
Answer» Four pairs of species are given. In which of the pairs is the second species more stable than the first?

Discussion

48.	What happens if the factors in column A are increased?ABA) Cation sizeI)Polarizability increasesB) Cation chargeII) Polarizing power decreaseC) Anion ChargeIII) Polarizability increasesD) Anion SizeIV) Polarizing power increases
Answer» What happens if the factors in column A are increased? $\begin{matrix} A & B A) Cation size & I) Polarizability increases B) Cation charge & II) Polarizing power decrease C) Anion Charge & III) Polarizability increases D) Anion Size & IV) Polarizing power increases \end{matrix}$

48.

What happens if the factors in column A are increased?ABA) Cation sizeI)Polarizability increasesB) Cation chargeII) Polarizing power decreaseC) Anion ChargeIII) Polarizability increasesD) Anion SizeIV) Polarizing power increases

Answer»

What happens if the factors in column A are increased?

$\begin{matrix} A & B A) Cation size & I) Polarizability increases B) Cation charge & II) Polarizing power decrease C) Anion Charge & III) Polarizability increases D) Anion Size & IV) Polarizing power increases \end{matrix}$

Discussion

49.	Which of the following compound is most stable?
Answer» Which of the following compound is most stable?

Discussion

50.	26. What will be the differentiation of d (2x) / dt if for reaction 2 A gives 3B , rate of A is calculated ? At t=0 reactant = a product = 0 At t =t reactant = a -2 x product = 3x
Answer» 26. What will be the differentiation of d (2x) / dt if for reaction 2 A gives 3B , rate of A is calculated ? At t=0 reactant = a product = 0 At t =t reactant = a -2 x product = 3x

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

If a→ and b→ are two non-zero vectors, then the projection of a→ on b→ is _____________.

when benzene is treated with isobutyl bromide in the presence of AlCl_3 it mainly gives 1) tertiary butyl benzene 2) isobutyl benzene 3) n-butyl benzene 4) Secondary butyl benzen 4

Order of decreasing basic strengths of halides is :

Use a connector to make the sentences sound better. Tushar boasts about his physical strength. He cannot perform a single push up.

total no of angular node present in 3dx^2-y^2 and 3dz^2 orbital

The IUPAC name for the complex [Co(NO2)(NH3)5]Cl2 is

Define the following terms : (i) Molar conductivity (∧m) (ii) Secondary batteries

10 g of hydrogen and 28 g nitrogen are allowed to react and the compound produced (assume complete forward reaction) is dissolved in one litre of water to produce a basic solution. The molarity of solution is:

What is bent t shape

an element occurs in BCC structure with edge length of 288pm the density of element is 7.2 how many atoms of the element does 208g of the eleme

Why water molecule does not form hydrogen bonding in gaseous state

number of isomers for benzoic acid

Predict the product of the given rearrangement reaction.

In the gulabjamun experiment that you have seen, which do you think is the adsorbate and which is the adsorbent?

HOW TO DIFFERENTIATE BETWEEN STEREO AND CHIRAL CENTRES AND FIND NO. OF STEREOISOMER

calculate mass of oxygen required to produce 495 dm3 of carbon di oxide on burning ethan

The rate of the reaction, 2A + B = products is given by the rate expression rate = k[A]1.5 [B]0.5. If A is 2 molar and B is 100 molar then the order of reaction will be

Question 57 Explain the terms ideal and non-ideal solutions in the light of forces of interactions operating between molecules in liquid solutions.

On analysis it was found that the black oxide of coppe and red oxide of copper contains 80% and 89% of copper respectively. Show that this data is in accordance with law of multiple proportions. Give me complt solution.

Find the incorrect statement:

Consider the following chlorides: The correct order of SN1 reactivity is

The right order of the solubility of sulphates alkaline earth metals is:

The hybridization of iodine in IF5 is:

If Cu2+ and Cu+ are present in sulphide ion of Cu0. 83S0.80 . Then how to find the ratio of Cu+ and Cu2+ ions in this compound

Reactivity of metal increases with increase in temperature because:

If the ionic product of water at 40oC is 4×10−14. The concentration of OH− ions in water at 40∘C is:

Calculate the wavelength for the emission transition if it starts from the orbit having radius 1.3225 nm and ends at 211.6 pm. Name the series to which this transition belongs and the region of the spectrum.

A metal X on heating in nitrogen gas gives Y. Y on treatment with H2O gives a colourless gas which when passed through CuSO4 solution gives a blue colour. Y is

29. what products are formed when 1,3-methylbenzene is treated with Br2 in the presence of FeBr3?

A coordination compound CrCl3.H2O precipitates silver chloride when treated with silver nitrate. The molar conductance of its soltuion corresponds to a total of two ions. Write structural formula of the compound and name it.

HCl does not behave as an acid in which of the following solvents?

Count the number of stereocentres in the molecule given below:

The stability of Me2C=CH2 is more than that of MeCH2CH=CH2 due to:

Q.1 what will be the concentration in molarity of a solution on dissolving 2 moles of solute in 500ml solution? Q.2 atomic mass of Ca is 40. the mass of 2.5g atoms of Ca is?

why potassium have valence of 3 and 5 bot

What is the major product of the following reaction sequence ?

ntIf activation energy of reaction decreases by 5.727kJ when catalyst is used at 27^°C the increase in rate of reaction is A18 times B 10 times C 8 times D 20 timesn

An ether is more volatile than a alcohol having the same molecular formula . This is due to 1) alcohols having resonace structures 2) intermolecular hydrogen bonding in ethers 3) intermolecular hydrogen bonding in alcohols 4) dipolar character of ethers

what is disubstitution benzene compounds?

{36. If 340 g of mixture of N_2 and H_2 in the cirrect ratii gave a 20}% yield of NH_3. The produced mass of NH_3 would be

The valence shell electronic configuration of group 18 element is:

he pertentage of hydrogen in water and hydrogen peroxide is 11.1 and 5.9 respectively. These figures iliustate

Theresistance of a conductivity cell containing 0.001M KCl solution at298 K is 1500 Ω. What is the cell constant if conductivity of0.001M KCl solution at 298 K is 0.146 × 10−3S cm−1.

If the ionic equivalent conductivities of K+Al3+,and SO2−4 ions are 4, 4, and 1 Scm2Eq−1 , respectively. Calculate the value of ∧0eq for Potash alum (K2SO4.Al2(SO4)3.24H2O)

Four pairs of species are given. In which of the pairs is the second species more stable than the first?

What happens if the factors in column A are increased?ABA) Cation sizeI)Polarizability increasesB) Cation chargeII) Polarizing power decreaseC) Anion ChargeIII) Polarizability increasesD) Anion SizeIV) Polarizing power increases

Which of the following compound is most stable?

26. What will be the differentiation of d (2x) / dt if for reaction 2 A gives 3B , rate of A is calculated ? At t=0 reactant = a product = 0 At t =t reactant = a -2 x product = 3x