46295 + Interview Questions in Chemistry

1.	Q26. Consider the following statements related to Iron ore Distribution in India. 1. Karnataka has more than half of the reserves of magnetite ore in India. 2. Chhatisgarh has the highest reserves of hematite ore in India. 3. Hematite and magnetite are the two most important iron ores found in India. Which of the above statement(s) is/are NOT correct?
Answer» Q26. Consider the following statements related to Iron ore Distribution in India. 1. Karnataka has more than half of the reserves of magnetite ore in India. 2. Chhatisgarh has the highest reserves of hematite ore in India. 3. Hematite and magnetite are the two most important iron ores found in India. Which of the above statement(s) is/are NOT correct?

1.

Q26. Consider the following statements related to Iron ore Distribution in India. 1. Karnataka has more than half of the reserves of magnetite ore in India. 2. Chhatisgarh has the highest reserves of hematite ore in India. 3. Hematite and magnetite are the two most important iron ores found in India. Which of the above statement(s) is/are NOT correct?

Answer»

Q26. Consider the following statements related to Iron ore Distribution in India.

1. Karnataka has more than half of the reserves of magnetite ore in India.

2. Chhatisgarh has the highest reserves of hematite ore in India.

3. Hematite and magnetite are the two most important iron ores found in India.

Which of the above statement(s) is/are NOT correct?

Discussion

2.	How many structural isomers are possible with molecular formula C4H11N.
Answer» How many structural isomers are possible with molecular formula $C_{4} H_{11} N$ .

Discussion

3.	Addition of which of the following has harmful effect in the process of filtration of water? Code:
Answer» Addition of which of the following has harmful effect in the process of filtration of water? Code:

3.

Addition of which of the following has harmful effect in the process of filtration of water? Code:

Answer»

Addition of which of the following has harmful effect in the process of filtration of water?

Code:

Discussion

4.	Which of the following will show paramagnetism?
Answer» Which of the following will show paramagnetism?

Discussion

5.	An ore of tin containing FeCrO4 is concentrated by
Answer» An ore of tin containing FeCrO₄is concentrated by

Discussion

6.	According to CFT, as the ligand approaches towards d orbital it results into
Answer» According to CFT, as the ligand approaches towards d orbital it results into

Discussion

7.	How to find formula of compounds ending with ic,ous,ortho,ate,ite etc(For example Ferrous,ferric,sulphite,sulphateetc,.)?
Answer» How to find formula of compounds ending with ic,ous,ortho,ate,ite etc(For example Ferrous,ferric,sulphite,sulphateetc,.)?

Discussion

8.	Which of the following transition elements does not exhibit variable oxidation states?
Answer» Which of the following transition elements does not exhibit variable oxidation states?

Discussion

9.	Total number of orbitals in a shell is given by
Answer» Total number of orbitals in a shell is given by

Discussion

10.	The solubility of alcohol is due to:
Answer» The solubility of alcohol is due to:

Discussion

11.	Atoms of element B form a ccp lattice and those of the element A occupy 2/3rd of the tetrahedral voids, the formula of the compound is:
Answer» Atoms of element B form a ccp lattice and those of the element A occupy 2/3rd of the tetrahedral voids, the formula of the compound is:

Discussion

12.	NH4Cl crystallizes in a body-centered cubic lattice with an edge length of unit cell equal to 387 pm. If the radius of the Cl− ion is 181 pm, the radius for NH+4 ion is?
Answer» $N H_{4} C l$ crystallizes in a body-centered cubic lattice with an edge length of unit cell equal to 387 pm. If the radius of the $C l^{-}$ ion is 181 pm, the radius for $N H_{4}^{+}$ ion is?

Discussion

13.	What is not Zero for Elementary substances at their standard state?
Answer» What is not Zero for Elementary substances at their standard state?

Discussion

14.	Consider a diprotic acid H2A. The dissociation constants for H2A and HA− are 10−6 and 10−13 respectively. Then, the pH of 0.25 M aqueous solution of H2A will be :
Answer» Consider a diprotic acid $H_{2} A$ . The dissociation constants for $H_{2} A$ and $H A^{-}$ are $10^{- 6} a n d 10^{- 13}$ respectively. Then, the pH of $0.25 M$ aqueous solution of $H_{2} A$ will be :

Discussion

15.	Why is the use of A.C. voltage preferred over D.C. voltage? Give two reasons.
Answer» Why is the use of A.C. voltage preferred over D.C. voltage? Give two reasons.

Discussion

16.	Sir, how can I revise for jee mains 2018 in last 4 days.....nd what r the important topics I can go through???
Answer» Sir, how can I revise for jee mains 2018 in last 4 days.....nd what r the important topics I can go through???

Discussion

17.	In the figure shown below reactant A (represented by the square) is in equilibrium with product B (represented by circle). The equilibrium constant is:
Answer» In the figure shown below reactant $A$ (represented by the square) is in equilibrium with product $B$ (represented by circle). The equilibrium constant is:

Discussion

18.	The compound (B) formed in the following sequence of reactions CH3CH2CH2OHPCl5−−−→(A)alc.KOH−−−−−→(B)
Answer» The compound (B) formed in the following sequence of reactions $C H_{3} C H_{2} C H_{2} O H P C l_{5} - -- \to (A) a l c . K O H - ---- \to (B)$

18.

The compound (B) formed in the following sequence of reactions CH3CH2CH2OHPCl5−−−→(A)alc.KOH−−−−−→(B)

Answer»

The compound (B) formed in the following sequence of reactions

$C H_{3} C H_{2} C H_{2} O H P C l_{5} - -- \to (A) a l c . K O H - ---- \to (B)$

Discussion

19.	Name two phenomena that can be explained on the basis of surface tension.
Answer» Name two phenomena that can be explained on the basis of surface tension.

Discussion

20.	At high attitude the boiling point of water lowers because
Answer» At high attitude the boiling point of water lowers because

Discussion

21.	Which of the following is an essential element for all plants?
Answer» Which of the following is an essential element for all plants?

Discussion

22.	Which ion has maximum mobility in aqueous phase?
Answer» Which ion has maximum mobility in aqueous phase?

Discussion

23.	Which of the following halogens shows least number of oxidation states?
Answer» Which of the following halogens shows least number of oxidation states?

Discussion

24.	The right order of the solubility of sulphates of alkaline earth metals in water is
Answer» The right order of the solubility of sulphates of alkaline earth metals in water is

Discussion

25.	+H3CCOCl Anhy.AlCl3−−−−−−−→ X+Y . X is major product. Then Y in the above equation is
Answer» $+ H_{3} C C O C l$ $A n h y . A l C l_{3} - ------ \to$ $X + Y$ . X is major product. Then Y in the above equation is

25.

+H3CCOCl Anhy.AlCl3−−−−−−−→ X+Y . X is major product. Then Y in the above equation is

Answer»

$+ H_{3} C C O C l$ $A n h y . A l C l_{3} - ------ \to$ $X + Y$ .

X is major product. Then Y in the above equation is

Discussion

26.	Which of the following monomers form biodegradable polymers? (a) 3-hydroxybutanoic acid + 3-hydroxypentanoic acid (b) Glycine + amino caproic acid (c) Ethylene glycol + phthalic acid (d) Caprolactum
Answer» Which of the following monomers form biodegradable polymers? (a) 3-hydroxybutanoic acid + 3-hydroxypentanoic acid (b) Glycine + amino caproic acid (c) Ethylene glycol + phthalic acid (d) Caprolactum

26.

Which of the following monomers form biodegradable polymers? (a) 3-hydroxybutanoic acid + 3-hydroxypentanoic acid (b) Glycine + amino caproic acid (c) Ethylene glycol + phthalic acid (d) Caprolactum

Answer»

Which of the following monomers form biodegradable polymers?

(a) 3-hydroxybutanoic acid + 3-hydroxypentanoic acid

(b) Glycine + amino caproic acid

(c) Ethylene glycol + phthalic acid

(d) Caprolactum

Discussion

27.	For which of the species is Bohr's theory not applicable?
Answer» For which of the species is Bohr's theory not applicable?

Discussion

28.	5 cm3 of acetone is added to 100cm3 of water, the vapour pressure of water over the solution
Answer» 5 cm³of acetone is added to 100cm³ of water, the vapour pressure of water over the solution

Discussion

29.	The numbers of lone pairs and bond pairs in hydrazine are, respectively
Answer» The numbers of lone pairs and bond pairs in hydrazine are, respectively

Discussion

30.	XeF6 dissolves in anhydrous HF to give a good conducting solution which contains:
Answer» $X e F_{6}$ dissolves in anhydrous HF to give a good conducting solution which contains:

Discussion

31.	In the following reaction
Answer» In the following reaction

Discussion

32.	Write the important conditions required for the linear combination of atomic orbitals to form molecular orbitals.
Answer» Write the important conditions required for the linear combination of atomic orbitals to form molecular orbitals.

Discussion

33.	The salt which is most "unlikely"to occur as minerals A.bromide B.sulphate C.oxide D.sulphides
Answer» The salt which is most "unlikely"to occur as minerals A.bromide B.sulphate C.oxide D.sulphides

33.

The salt which is most "unlikely"to occur as minerals A.bromide B.sulphate C.oxide D.sulphides

Answer»

The salt which is most "unlikely"to occur as minerals

A.bromide

B.sulphate

C.oxide

D.sulphides

Discussion

34.	Which of the following is an example of a solid-solid solution?
Answer» Which of the following is an example of a solid-solid solution?

Discussion

35.	Can we get two different answers for balancing reactions by ion electron method?
Answer» Can we get two different answers for balancing reactions by ion electron method?

Discussion

36.	For the reactions, Br2+OH−→Br−+BrO−3+H2O what is the equivalent weight of Br2 ?
Answer» For the reactions, $B r_{2} + O H^{-} \to B r^{-} + B r O_{3}^{-} + H_{2} O$ what is the equivalent weight of $B r_{2}$ ?

Discussion

37.	Which of the following hydrides conducts electricity?
Answer» Which of the following hydrides conducts electricity?

Discussion

38.	Among the electrolytes Na2SO4,CaCl2,Al2(SO4)3 and NH4Cl, the most effective coagulating agent for Sb2S3 sol is
Answer» Among the electrolytes $N a_{2} S O_{4}, C a C l_{2}, A l_{2} (S O_{4})_{3}$ and $N H_{4} C l$ , the most effective coagulating agent for $S b_{2} S_{3}$ sol is

Discussion

39.	___ is the oxidizing agent which converts ammonia NH3 to nitric acid HNO3 in ostwald process.
Answer» ___ is the oxidizing agent which converts ammonia $N H_{3}$ to nitric acid $H N O_{3}$ in ostwald process.

Discussion

40.	Q:Count the number of significant figures in the measurment: 86400.00
Answer» Q:Count the number of significant figures in the measurment: 86400.00

Discussion

41.	Can I get a list of all catalysts and their functions related to organic chemistry class 12th?
Answer» Can I get a list of all catalysts and their functions related to organic chemistry class 12th?

Discussion

42.	What is the OH ion concentration in the final solution prepared by mixing 20 mL of 0.050 M HCl with 30 mL of 0.10 M barium hydroxide?
Answer» What is the OH ion concentration in the final solution prepared by mixing 20 mL of 0.050 M HCl with 30 mL of 0.10 M barium hydroxide?

Discussion

43.	A group of ions are given below. Find one pair which is not Isoelectronic. Na+, Al3+, Ca2+ , Br –, F –
Answer» A group of ions are given below. Find one pair which is not Isoelectronic. Na+, Al3+, Ca2+ , Br –, F –

Discussion

44.	What is tangential stress simply?
Answer» What is tangential stress simply?

Discussion

45.	The time taken by the electron in one complete revolution in the nth Bohr's orbit of the hydrogen atom is:
Answer» The time taken by the electron in one complete revolution in the $n^{t h}$ Bohr's orbit of the hydrogen atom is:

Discussion

46.	Which one of the following compounds has sp2 hybridization?
Answer» Which one of the following compounds has ${s p}^{2}$ hybridization?

Discussion

47.	Why active mass of pure solid is taken as one whereas other is not?
Answer» Why active mass of pure solid is taken as one whereas other is not?

Discussion

48.	IN ATOMIC STRUCTURE IN Section ELECTRONIC CONFIGURATION AND ORBITAL DIAGRAMS (video 22:17) The teacher is telling that Aufbau and Hund's rule have some exceptional case Due to the atoms with half or fulfilled orbitals have more stability example: copper and chromium cr: [Ar] 3d4 4s2 (expectation) [Ar] 3d5 4s1 (real) this due to the atoms with half or fulfilled orbitals have more stability my doubt is about consider carbon and fluorine C: 1s2 2s22p2 (I studied) when I apply the half or full filled subshell has more energy I will get this configuration C: 1s2 2s12p3 (my doubt) here s and p subshell is half filled I asking you that this model much stable than that I studied same for fluorine
Answer» IN ATOMIC STRUCTURE IN Section ELECTRONIC CONFIGURATION AND ORBITAL DIAGRAMS (video 22:17) The teacher is telling that Aufbau and Hund's rule have some exceptional case Due to the atoms with half or fulfilled orbitals have more stability example: copper and chromium cr: [Ar] 3d⁴ 4s² (expectation) [Ar] 3d⁵ 4s¹ (real) this due to the atoms with half or fulfilled orbitals have more stability my doubt is about consider carbon and fluorine C: 1s² 2s²2p² (I studied) when I apply the half or full filled subshell has more energy I will get this configuration C: 1s² 2s¹2p³ (my doubt) here s and p subshell is half filled I asking you that this model much stable than that I studied same for fluorine

48.

IN ATOMIC STRUCTURE IN Section ELECTRONIC CONFIGURATION AND ORBITAL DIAGRAMS (video 22:17) The teacher is telling that Aufbau and Hund's rule have some exceptional case Due to the atoms with half or fulfilled orbitals have more stability example: copper and chromium cr: [Ar] 3d4 4s2 (expectation) [Ar] 3d5 4s1 (real) this due to the atoms with half or fulfilled orbitals have more stability my doubt is about consider carbon and fluorine C: 1s2 2s22p2 (I studied) when I apply the half or full filled subshell has more energy I will get this configuration C: 1s2 2s12p3 (my doubt) here s and p subshell is half filled I asking you that this model much stable than that I studied same for fluorine

Answer»

IN ATOMIC STRUCTURE

IN Section ELECTRONIC CONFIGURATION AND ORBITAL DIAGRAMS (video 22:17)

The teacher is telling that Aufbau and Hund's rule have some exceptional case

Due to the atoms with half or fulfilled orbitals have more stability

example: copper and chromium

cr: [Ar] 3d⁴ 4s² (expectation)

[Ar] 3d⁵ 4s¹ (real)

this due to the atoms with half or fulfilled orbitals have more stability

my doubt is about

consider carbon and fluorine

C: 1s² 2s²2p² (I studied)

when I apply the half or full filled subshell has more energy

I will get this configuration

C: 1s² 2s¹2p³ (my doubt)

here s and p subshell is half filled I asking you that this model much stable than that I studied

same for fluorine

Discussion

49.	How many lone pairs of electrons are there in the tri iodide ion ?
Answer» How many lone pairs of electrons are there in the tri iodide ion ?

Discussion

50.	A solution of PH= 9 is 1000 times as basic as PH?
Answer» A solution of PH= 9 is 1000 times as basic as PH?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

How many structural isomers are possible with molecular formula C4H11N.

Addition of which of the following has harmful effect in the process of filtration of water? Code:

Which of the following will show paramagnetism?

An ore of tin containing FeCrO4 is concentrated by

According to CFT, as the ligand approaches towards d orbital it results into

How to find formula of compounds ending with ic,ous,ortho,ate,ite etc(For example Ferrous,ferric,sulphite,sulphateetc,.)?

Which of the following transition elements does not exhibit variable oxidation states?

Total number of orbitals in a shell is given by

The solubility of alcohol is due to:

Atoms of element B form a ccp lattice and those of the element A occupy 2/3rd of the tetrahedral voids, the formula of the compound is:

NH4Cl crystallizes in a body-centered cubic lattice with an edge length of unit cell equal to 387 pm. If the radius of the Cl− ion is 181 pm, the radius for NH+4 ion is?

What is not Zero for Elementary substances at their standard state?

Consider a diprotic acid H2A. The dissociation constants for H2A and HA− are 10−6 and 10−13 respectively. Then, the pH of 0.25 M aqueous solution of H2A will be :

Why is the use of A.C. voltage preferred over D.C. voltage? Give two reasons.

Sir, how can I revise for jee mains 2018 in last 4 days.....nd what r the important topics I can go through???

In the figure shown below reactant A (represented by the square) is in equilibrium with product B (represented by circle). The equilibrium constant is:

The compound (B) formed in the following sequence of reactions CH3CH2CH2OHPCl5−−−→(A)alc.KOH−−−−−→(B)

Name two phenomena that can be explained on the basis of surface tension.

At high attitude the boiling point of water lowers because

Which of the following is an essential element for all plants?

Which ion has maximum mobility in aqueous phase?

Which of the following halogens shows least number of oxidation states?

The right order of the solubility of sulphates of alkaline earth metals in water is

+H3CCOCl Anhy.AlCl3−−−−−−−→ X+Y . X is major product. Then Y in the above equation is

Which of the following monomers form biodegradable polymers? (a) 3-hydroxybutanoic acid + 3-hydroxypentanoic acid (b) Glycine + amino caproic acid (c) Ethylene glycol + phthalic acid (d) Caprolactum

For which of the species is Bohr's theory not applicable?

5 cm3 of acetone is added to 100cm3 of water, the vapour pressure of water over the solution

The numbers of lone pairs and bond pairs in hydrazine are, respectively

XeF6 dissolves in anhydrous HF to give a good conducting solution which contains:

In the following reaction

Write the important conditions required for the linear combination of atomic orbitals to form molecular orbitals.

The salt which is most "unlikely"to occur as minerals A.bromide B.sulphate C.oxide D.sulphides

Which of the following is an example of a solid-solid solution?

Can we get two different answers for balancing reactions by ion electron method?

For the reactions, Br2+OH−→Br−+BrO−3+H2O what is the equivalent weight of Br2 ?

Which of the following hydrides conducts electricity?

Among the electrolytes Na2SO4,CaCl2,Al2(SO4)3 and NH4Cl, the most effective coagulating agent for Sb2S3 sol is

___ is the oxidizing agent which converts ammonia NH3 to nitric acid HNO3 in ostwald process.

Q:Count the number of significant figures in the measurment: 86400.00

Can I get a list of all catalysts and their functions related to organic chemistry class 12th?

What is the OH ion concentration in the final solution prepared by mixing 20 mL of 0.050 M HCl with 30 mL of 0.10 M barium hydroxide?

A group of ions are given below. Find one pair which is not Isoelectronic. Na+, Al3+, Ca2+ , Br –, F –

What is tangential stress simply?

The time taken by the electron in one complete revolution in the nth Bohr's orbit of the hydrogen atom is:

Which one of the following compounds has sp2 hybridization?

Why active mass of pure solid is taken as one whereas other is not?

How many lone pairs of electrons are there in the tri iodide ion ?

A solution of PH= 9 is 1000 times as basic as PH?