46295 + Interview Questions in Chemistry

1.	Find the product of the above reaction
Answer» Find the product of the above reaction

Discussion

2.	Why will sulphur particles scatter blue light?
Answer» Why will sulphur particles scatter blue light?

Discussion

3.	What are dipole dipole interaction?
Answer» What are dipole dipole interaction?

Discussion

4.	Which of the following compounds will not show resonance?
Answer» Which of the following compounds will not show resonance?

Discussion

5.	What is meant by shielding effect?
Answer» What is meant by shielding effect?

Discussion

6.	Viruses were discovered by
Answer» Viruses were discovered by

Discussion

7.	In the body, message between two neurons and that between neurons to muscles is communicated through certain chemicals. These chemicals are the:
Answer» In the body, message between two neurons and that between neurons to muscles is communicated through certain chemicals. These chemicals are the:

Discussion

8.	Which among the underlined verbs are/is intransitive? The unruly dog jumped.. Aiko burnt the straw hut down to the ground. The audience laughed when the comedienne impersonated the Prime Minister.
Answer» Which among the underlined verbs are/is intransitive? The unruly dog jumped.. Aiko burnt the straw hut down to the ground. The audience laughed when the comedienne impersonated the Prime Minister.

8.

Which among the underlined verbs are/is intransitive? The unruly dog jumped.. Aiko burnt the straw hut down to the ground. The audience laughed when the comedienne impersonated the Prime Minister.

Answer»

Which among the underlined verbs are/is intransitive?

The unruly dog jumped..

Aiko burnt the straw hut down to the ground.

The audience laughed when the comedienne impersonated the Prime Minister.

Discussion

9.	Which one of the following is an Z isomer?
Answer» Which one of the following is an Z isomer?

Discussion

10.	Which of the following option(s) is/are correct regarding ionic compounds?
Answer» Which of the following option(s) is/are correct regarding ionic compounds?

Discussion

11.	In which of the following pair both species have same Cl-x-Cl bond angle? •CCl4 , SiCl4 •POCl3 , SO2Cl2 •BCl3 , AlCl3 And why??
Answer» In which of the following pair both species have same Cl-x-Cl bond angle? •CCl₄, SiCl₄ •POCl₃ , SO₂Cl₂ •BCl₃ , AlCl₃ And why??

Discussion

12.	Will all central metal atom in coordination complex be cation in coordination complex?!? if so Why should it have that charge???
Answer» Will all central metal atom in coordination complex be cation in coordination complex?!? if so Why should it have that charge???

Discussion

13.	1 g H2 gas as STP is expanded so that volume is doubled. Hence, work done is
Answer» 1 g $H_{2}$ gas as STP is expanded so that volume is doubled. Hence, work done is

Discussion

14.	What do you mean by green chemistry? How will it help decrease environmental pollution?
Answer» What do you mean by green chemistry? How will it help decrease environmental pollution?

Discussion

15.	On being heated in oxygen 5.72 g of red metallic oxide A was converted to 6.36 g Black metallic oxide B. When 4.77 g of B was heated in a stream of H2 gas, 3.81 g of metal M was formed. ( Atomic weight of metal is 63.50 g) Find The formula of Red metallic oxide A ..... The formula if Black metallic oxide ..... The equivalent weight of metal M in B .....
Answer» On being heated in oxygen 5.72 g of red metallic oxide A was converted to 6.36 g Black metallic oxide B. When 4.77 g of B was heated in a stream of H₂ gas, 3.81 g of metal M was formed. ( Atomic weight of metal is 63.50 g) Find The formula of Red metallic oxide A ..... The formula if Black metallic oxide ..... The equivalent weight of metal M in B .....

15.

On being heated in oxygen 5.72 g of red metallic oxide A was converted to 6.36 g Black metallic oxide B. When 4.77 g of B was heated in a stream of H2 gas, 3.81 g of metal M was formed. ( Atomic weight of metal is 63.50 g) Find The formula of Red metallic oxide A ..... The formula if Black metallic oxide ..... The equivalent weight of metal M in B .....

Answer»

On being heated in oxygen 5.72 g of red metallic oxide A was converted to 6.36 g Black metallic oxide B. When 4.77 g of B was heated in a stream of H₂ gas, 3.81 g of metal M was formed. ( Atomic weight of metal is 63.50 g) Find

The formula of Red metallic oxide A .....

The formula if Black metallic oxide .....

The equivalent weight of metal M in B .....

Discussion

16.	H - B - H bond angle in BH−4 is:
Answer» H - B - H bond angle in $B H_{4}^{-}$ is:

Discussion

17.	What is "pseudo octet configuration"? Explanation of it in detail and an example is also needed?
Answer» What is "pseudo octet configuration"? Explanation of it in detail and an example is also needed?

Discussion

18.	Nucleic acids exhibit secondary structure. Describe through Watson -Crick model
Answer» Nucleic acids exhibit secondary structure. Describe through Watson -Crick model

Discussion

19.	If the formula of beryl is BexAlySi6O18 What is the values of xyx+y
Answer» If the formula of beryl is $B e_{x} A l_{y} S i_{6} O_{18}$ What is the values of $\frac{x y}{x + y}$

Discussion

20.	Find the amount of carbon needed to produce 683 g of Ni(CO)4. C+CO2→CO (Yield of reaction = 70 %) Ni+4CO→Ni(CO)4 (Yield of Mond’s process = 20 %) (Molar mass of Nickel = 58.7 g/mol)
Answer» Find the amount of carbon needed to produce $683 g$ of $N i (C O)_{4}$ . $C + C O_{2} \to C O (Yield of reaction = 70 %)$ $N i + 4 C O \to N i (C O)_{4} (Yield of Mond’s process = 20 %)$ (Molar mass of Nickel = $58.7 g/mol$ )

Discussion

21.	There are some species given below. (i) O+2(ii) CO(iii) B2(iv) O−2(v) NO+(vi) He+2(vii) C2+2(viii) CN−(ix)N−2 Total number of species which have their fractional bond order.
Answer» There are some species given below. $\begin{matrix} (i) O_{2}^{+} & (i i) C O & (i i i) B_{2} & (i v) O_{2}^{-} (v) N O^{+} & (v i) H e_{2}^{+} & (v i i) C_{2}^{2 +} & (v i i i) C N^{-} (i x) N_{2}^{-} \end{matrix}$ Total number of species which have their fractional bond order.

Discussion

22.	Mercury is the only metal which is liquid at 0∘C. This is due to its
Answer» Mercury is the only metal which is liquid at $0^{\circ} C$ . This is due to its

Discussion

23.	Give the number of electrons in the species H+2, H2 and O+2
Answer» Give the number of electrons in the species $H_{2}^{+}, H_{2} a n d O_{2}^{+}$

Discussion

24.	Calculate the solubility of AgCN in a buffer solution of pH 3 . Given ksp of AgCN 1.2×10-16 and ka for HCN is 4.8×10-10.
Answer» Calculate the solubility of AgCN in a buffer solution of pH 3 . Given k_spof AgCN 1.2×10^-16 and k_afor HCN is 4.8×10^-10.

Discussion

25.	Compound (A) and (C) in the following reaction are
Answer» Compound (A) and (C) in the following reaction are

Discussion

26.	which of the following statement is not true about amorphous solids ? (a) On heating they may become crystalline at certain temperature (b) They may become crystalline on keeping for long time (c) Amorphous solids can be moulded by heating (d) They are anisotropic in nature
Answer» which of the following statement is not true about amorphous solids ? (a) On heating they may become crystalline at certain temperature (b) They may become crystalline on keeping for long time (c) Amorphous solids can be moulded by heating (d) They are anisotropic in nature

26.

which of the following statement is not true about amorphous solids ? (a) On heating they may become crystalline at certain temperature (b) They may become crystalline on keeping for long time (c) Amorphous solids can be moulded by heating (d) They are anisotropic in nature

Answer»

which of the following statement is not true about amorphous solids ?

(a) On heating they may become crystalline at certain temperature

(b) They may become crystalline on keeping for long time

(c) Amorphous solids can be moulded by heating

(d) They are anisotropic in nature

Discussion

27.	The unoccupied space in an unit cell is called as
Answer» The unoccupied space in an unit cell is called as

Discussion

28.	The aldehyde functional group is present in
Answer» The aldehyde functional group is present in

Discussion

29.	How are transparent soaps manufactured?
Answer» How are transparent soaps manufactured?

Discussion

30.	4-Pentenoic acidSOCl2−−−−→(X)Piperidine−−−−−−→(Y) (Y)i. LAH−−−−−−−→ii. H+/H2O Identify final (major) product.
Answer» $4-Pentenoic acid S O C l_{2} - --- \to (X) Piperidine - ----- \to (Y)$ $(Y) i . L A H - ------ \to i i . H^{+} / H_{2} O$ Identify final (major) product.

Discussion

31.	The first ionization energy of the d-block elements are?
Answer» The first ionization energy of the d-block elements are?

Discussion

32.	The first ionization energy of the d-block elements are:
Answer» The first ionization energy of the d-block elements are:

Discussion

33.	3.7 g of a gas at 25∘C occupies the same volume as 0.184 g of hydrogen at 17∘C at the same pressure. What is the molecular mass of the gas (round off to the nearest integer)?
Answer» $3.7 g$ of a gas at $25^{\circ} C$ occupies the same volume as $0.184 g$ of hydrogen at $17^{\circ} C$ at the same pressure. What is the molecular mass of the gas (round off to the nearest integer)?

Discussion

34.	The correct sequence of the decreasing order of reactivity during hydrolysis of acid chlorides is:
Answer» The correct sequence of the decreasing order of reactivity during hydrolysis of acid chlorides is:

Discussion

35.	The intermediate formed in homolytic fission is :
Answer» The intermediate formed in homolytic fission is :

Discussion

36.	Principal quantum number of an atom represents
Answer» Principal quantum number of an atom represents

Discussion

37.	In a face centered cubic lattice, atom A occupies the corner position and atom B occupies face centre position. If one atom of B is missing from one of the face centred points, the formula of compound is AxB5. Find the value of x.___
Answer» In a face centered cubic lattice, atom A occupies the corner position and atom B occupies face centre position. If one atom of B is missing from one of the face centred points, the formula of compound is $A_{x} B_{5}$ . Find the value of x.___

Discussion

38.	Which of the following pairs of salts will have the same relation between solubility product (Ksp) and solubility (s)?
Answer» Which of the following pairs of salts will have the same relation between solubility product $(K_{s p})$ and solubility (s)?

Discussion

39.	The no. of neutral molecule or negative groups attached to central metal atom in a complex ion is called
Answer» The no. of neutral molecule or negative groups attached to central metal atom in a complex ion is called

Discussion

40.	Compound A A(C10H6) liberates 2 mole of CH4 when treated with MeMgBr. On heating with KMnO4 solution, “A” produces benzene dicarboxylic acid which on mononitration produces only one product and no other isomers. The compound “A” can be:
Answer» Compound A $A (C_{10} H_{6})$ liberates 2 mole of $C H_{4}$ when treated with MeMgBr. On heating with $K M n O_{4}$ solution, “A” produces benzene dicarboxylic acid which on mononitration produces only one product and no other isomers. The compound “A” can be:

Discussion

41.	8 g of O2 reacts with excess of H2 to form water. How much water will be formed as a result?
Answer» $8 g$ of $O_{2}$ reacts with excess of $H_{2}$ to form water. How much water will be formed as a result?

Discussion

42.	Ethylene is a member of ___________ series
Answer» Ethylene is a member of ___________ series

Discussion

43.	Number of isomers of C4H10 is
Answer» Number of isomers of $C_{4} H_{10}$ is

43.

Number of isomers of C4H10 is

Answer»

Number of isomers of $C_{4} H_{10}$ is

Discussion

44.	An alkyl halide may be converted into an alcohol by?
Answer» An alkyl halide may be converted into an alcohol by?

Discussion

45.	1 g of a gaseous compound of boron and hydrogen occupies 0.820 L at 1 atm and 3 ∘C. The compound is: (R=0.0820 L atm mol−1K−1; molar mass of H=1 g,B=10.8 g
Answer» $1 g$ of a gaseous compound of boron and hydrogen occupies $0.820 L$ at $1 atm$ and $3^{\circ} C$ . The compound is: $(R = 0.0820 {L atm mol}^{- 1} K^{- 1}; molar mass of H = 1 g, B = 10.8 g$

Discussion

46.	Which concept best explains that o-nitrophenol is more volatile than p-nitrophenol
Answer» Which concept best explains that o-nitrophenol is more volatile than p-nitrophenol

46.

Which concept best explains that o-nitrophenol is more volatile than p-nitrophenol

Answer»

Which concept best explains that o-nitrophenol is more volatile than p-nitrophenol

Discussion

47.	Which of the following are wrong statements I) Acetaldehyde reduces Fehling's solution to Cu(II) oxide II) Acetaldehyde is reduced by fehlings solution forming Cu2O precipitate III) Ketones cannot reduce Fehling's solution IV) Aldehydes can reduce Tollen's reagent into silver mirror
Answer» Which of the following are wrong statements I) Acetaldehyde reduces Fehling's solution to Cu(II) oxide II) Acetaldehyde is reduced by fehlings solution forming Cu₂O precipitate III) Ketones cannot reduce Fehling's solution IV) Aldehydes can reduce Tollen's reagent into silver mirror

47.

Which of the following are wrong statements I) Acetaldehyde reduces Fehling's solution to Cu(II) oxide II) Acetaldehyde is reduced by fehlings solution forming Cu2O precipitate III) Ketones cannot reduce Fehling's solution IV) Aldehydes can reduce Tollen's reagent into silver mirror

Answer»

Which of the following are wrong statements

I) Acetaldehyde reduces Fehling's solution to Cu(II) oxide

II) Acetaldehyde is reduced by fehlings solution forming Cu₂O precipitate

III) Ketones cannot reduce Fehling's solution

IV) Aldehydes can reduce Tollen's reagent into silver mirror

Discussion

48.	Alkenyne is the hydrocarbon which contains both double and triple bond in a single molecule. The third member of the family of alkenynes has the molecular formula:
Answer» Alkenyne is the hydrocarbon which contains both double and triple bond in a single molecule. The third member of the family of alkenynes has the molecular formula:

Discussion

49.	The product 'X' is:
Answer» The product 'X' is:

Discussion

50.	The correct order of decreasing dipole moment is:
Answer» The correct order of decreasing dipole moment is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Find the product of the above reaction

Why will sulphur particles scatter blue light?

What are dipole dipole interaction?

Which of the following compounds will not show resonance?

What is meant by shielding effect?

Viruses were discovered by

In the body, message between two neurons and that between neurons to muscles is communicated through certain chemicals. These chemicals are the:

Which among the underlined verbs are/is intransitive? The unruly dog jumped.. Aiko burnt the straw hut down to the ground. The audience laughed when the comedienne impersonated the Prime Minister.

Which one of the following is an Z isomer?

Which of the following option(s) is/are correct regarding ionic compounds?

In which of the following pair both species have same Cl-x-Cl bond angle? •CCl4 , SiCl4 •POCl3 , SO2Cl2 •BCl3 , AlCl3 And why??

Will all central metal atom in coordination complex be cation in coordination complex?!? if so Why should it have that charge???

1 g H2 gas as STP is expanded so that volume is doubled. Hence, work done is

What do you mean by green chemistry? How will it help decrease environmental pollution?

H - B - H bond angle in BH−4 is:

What is "pseudo octet configuration"? Explanation of it in detail and an example is also needed?

Nucleic acids exhibit secondary structure. Describe through Watson -Crick model

If the formula of beryl is BexAlySi6O18 What is the values of xyx+y

Find the amount of carbon needed to produce 683 g of Ni(CO)4. C+CO2→CO (Yield of reaction = 70 %) Ni+4CO→Ni(CO)4 (Yield of Mond’s process = 20 %) (Molar mass of Nickel = 58.7 g/mol)

There are some species given below. (i) O+2(ii) CO(iii) B2(iv) O−2(v) NO+(vi) He+2(vii) C2+2(viii) CN−(ix)N−2 Total number of species which have their fractional bond order.

Mercury is the only metal which is liquid at 0∘C. This is due to its

Give the number of electrons in the species H+2, H2 and O+2

Calculate the solubility of AgCN in a buffer solution of pH 3 . Given ksp of AgCN 1.2×10-16 and ka for HCN is 4.8×10-10.

Compound (A) and (C) in the following reaction are

which of the following statement is not true about amorphous solids ? (a) On heating they may become crystalline at certain temperature (b) They may become crystalline on keeping for long time (c) Amorphous solids can be moulded by heating (d) They are anisotropic in nature

The unoccupied space in an unit cell is called as

The aldehyde functional group is present in

How are transparent soaps manufactured?

4-Pentenoic acidSOCl2−−−−→(X)Piperidine−−−−−−→(Y) (Y)i. LAH−−−−−−−→ii. H+/H2O Identify final (major) product.

The first ionization energy of the d-block elements are?

The first ionization energy of the d-block elements are:

3.7 g of a gas at 25∘C occupies the same volume as 0.184 g of hydrogen at 17∘C at the same pressure. What is the molecular mass of the gas (round off to the nearest integer)?

The correct sequence of the decreasing order of reactivity during hydrolysis of acid chlorides is:

The intermediate formed in homolytic fission is :

Principal quantum number of an atom represents

In a face centered cubic lattice, atom A occupies the corner position and atom B occupies face centre position. If one atom of B is missing from one of the face centred points, the formula of compound is AxB5. Find the value of x.___

Which of the following pairs of salts will have the same relation between solubility product (Ksp) and solubility (s)?

The no. of neutral molecule or negative groups attached to central metal atom in a complex ion is called

Compound A A(C10H6) liberates 2 mole of CH4 when treated with MeMgBr. On heating with KMnO4 solution, “A” produces benzene dicarboxylic acid which on mononitration produces only one product and no other isomers. The compound “A” can be:

8 g of O2 reacts with excess of H2 to form water. How much water will be formed as a result?

Ethylene is a member of ___________ series

Number of isomers of C4H10 is

An alkyl halide may be converted into an alcohol by?

1 g of a gaseous compound of boron and hydrogen occupies 0.820 L at 1 atm and 3 ∘C. The compound is: (R=0.0820 L atm mol−1K−1; molar mass of H=1 g,B=10.8 g

Which concept best explains that o-nitrophenol is more volatile than p-nitrophenol

Which of the following are wrong statements I) Acetaldehyde reduces Fehling's solution to Cu(II) oxide II) Acetaldehyde is reduced by fehlings solution forming Cu2O precipitate III) Ketones cannot reduce Fehling's solution IV) Aldehydes can reduce Tollen's reagent into silver mirror

Alkenyne is the hydrocarbon which contains both double and triple bond in a single molecule. The third member of the family of alkenynes has the molecular formula:

The product 'X' is:

The correct order of decreasing dipole moment is: