15280 + Interview Questions in Chemistry

1.	CFC usage is more in modern days because it is
Answer» CFC usage is more in modern days because it is

Discussion

2.	in an adiabatic process if pressure P and density d of a monoatomic gas are related as P is proportional to d^{x }then x is eq
Answer» in an adiabatic process if pressure P and density d of a monoatomic gas are related as P is proportional to d^{x }then x is eq

Discussion

3.	64. Why lyophilic sols 1)are highly hydrated. 2)have much higher viscosity than medium. 3)usually have lower surface tension than that of the medium.?
Answer» 64. Why lyophilic sols 1)are highly hydrated. 2)have much higher viscosity than medium. 3)usually have lower surface tension than that of the medium.?

Discussion

4.	39. first second and third ionization enthalpy of aluminium 578, 1817 ,and 2745 KJ per mole respectively. calculate energy required to convert all the atoms of Al into Al+3 present in 270 milligrams of aluminium vapours 51402KJ 5 1.40 kJ 2745 kJ 514.0 kJ
Answer» 39. first second and third ionization enthalpy of aluminium 578, 1817 ,and 2745 KJ per mole respectively. calculate energy required to convert all the atoms of Al into Al+3 present in 270 milligrams of aluminium vapours 51402KJ 5 1.40 kJ 2745 kJ 514.0 kJ

Discussion

5.	Saturated hydrocarbons contain C atoms joined by a ___ covalent bond.
Answer» Saturated hydrocarbons contain C atoms joined by a ___ covalent bond.

Discussion

6.	Chalk is:
Answer» Chalk is:

Discussion

7.	Which of the following metal is always a constituent of an amalgam?
Answer» Which of the following metal is always a constituent of an amalgam?

Discussion

8.	the native Ag forms a water soluble compound B with dilute aqueous solution of NaCN in the presence of a gas A the Ag metal is obtained by the addition of a metal C to B and complex D is formed as a by product write the structures of C and D and identify A and B in the following sequence; Ag+NaCN+H2O+A=B+OH+Na .[C]+[B]=[D]=Ag
Answer» the native Ag forms a water soluble compound B with dilute aqueous solution of NaCN in the presence of a gas A the Ag metal is obtained by the addition of a metal C to B and complex D is formed as a by product write the structures of C and D and identify A and B in the following sequence; Ag+NaCN+H2O+A=B+OH+Na .[C]+[B]=[D]=Ag

Discussion

9.	The molecular formula of the third member of the homologous series of ketones is : (a) C4H8O (b) C3H6O (c) C5H10O (d) C6H12O
Answer» The molecular formula of the third member of the homologous series of ketones is : (a) $C_{4} H_{8} O$ (b) $C_{3} H_{6} O$ (c) $C_{5} H_{10} O$ (d) $C_{6} H_{12} O$

Discussion

10.	22. Which allotropes of sulphur is known as flower of sulphur?
Answer» 22. Which allotropes of sulphur is known as flower of sulphur?

Discussion

11.	Write the important uses of acetic acid.
Answer» Write the important uses of acetic acid.

Discussion

12.	31.mixture of carbon dioxide and carbon monoxide is passed over red hot graphite when 1 ole of mixture changes to 33.6L (converted at STP) hence mole fraction of carbon dioxide in the mixture is
Answer» 31.mixture of carbon dioxide and carbon monoxide is passed over red hot graphite when 1 ole of mixture changes to 33.6L (converted at STP) hence mole fraction of carbon dioxide in the mixture is

Discussion

13.	Question 13 In the soil, which nutrient is enriched by blue-green algae (cyanobacteria)?
Answer» Question 13 In the soil, which nutrient is enriched by blue-green algae (cyanobacteria)?

Discussion

14.	What are alkaline earth metals?
Answer» What are alkaline earth metals?

Discussion

15.	Acetic acid is a typical acid. Write one equation in each case for its reaction with (a) a metal, (b) a base/alkali, (c) a carbonate, (d) a bicarbonate.
Answer» Acetic acid is a typical acid. Write one equation in each case for its reaction with (a) a metal, (b) a base/alkali, (c) a carbonate, (d) a bicarbonate.

Discussion

16.	What is the chemical formula of 'Mica'?
Answer» What is the chemical formula of 'Mica'?

Discussion

17.	How does sulphuric acid occur in nature?
Answer» How does sulphuric acid occur in nature?

Discussion

18.	Rewrite the sentence by removing ‘too ... to’. The water is too toxic to be consumed.
Answer» Rewrite the sentence by removing ‘too ... to’. The water is too toxic to be consumed.

18.

Rewrite the sentence by removing ‘too ... to’. The water is too toxic to be consumed.

Answer»

Rewrite the sentence by removing ‘too ... to’.

The water is too toxic to be consumed.

Discussion

19.	A solution X gives orange colour when a drop of universal indicator is added to it. In the other hand, another solution Y gives blueish green colour when a drop of universal indicator is added to it. What are the types of solution X and Y and what type of pH would they have?
Answer» A solution X gives orange colour when a drop of universal indicator is added to it. In the other hand, another solution Y gives blueish green colour when a drop of universal indicator is added to it. What are the types of solution X and Y and what type of pH would they have?

Discussion

20.	The rate of oxidation of chloroform decreases in the presence of alchohol. alchohol is a/an ___ for this reaction.
Answer» The rate of oxidation of chloroform decreases in the presence of alchohol. alchohol is a/an ___ for this reaction.

Discussion

21.	What does a word mean thrust
Answer» What does a word mean thrust

Discussion

22.	In the below reaction, the structural formula of (A), “X” and “Y” respectively are:
Answer» In the below reaction, the structural formula of (A), “X” and “Y” respectively are:

Discussion

23.	Electron affinities of two elements A and B are given below:A = 3.79 electron voltsB = 3.56 electron voltsWhich of them will ionize more easily and why?
Answer» Electron affinities of two elements A and B are given below: A = 3.79 electron volts B = 3.56 electron volts Which of them will ionize more easily and why?

Discussion

24.	THE HYBERDIZATION OF Cr IN COMPLEX[Cr(NO2)4(NH3)2]-
Answer» THE HYBERDIZATION OF Cr IN COMPLEX[Cr(NO2)4(NH3)2]-

Discussion

25.	Soil conservation can best achieved by having:
Answer» Soil conservation can best achieved by having:

Discussion

26.	(g) From the elements given below name the following:Li, Be, B, C, N, O, F, Ne.(i) Most electronegative element.(ii) Which element has highest electron affinity?(iii) Most metallic element?(iv) Which element has the largest size?(v) Name the tetravalent element.
Answer» (g) From the elements given below name the following: Li, Be, B, C, N, O, F, Ne. (i) Most electronegative element. (ii) Which element has highest electron affinity? (iii) Most metallic element? (iv) Which element has the largest size? (v) Name the tetravalent element.

Discussion

27.	At which trophic level a person is feeding when he is eating : (a) roasted chicken (b) bread (c) eggs (d) apple (e) fish
Answer» At which trophic level a person is feeding when he is eating : (a) roasted chicken (b) bread (c) eggs (d) apple (e) fish

Discussion

28.	State the merits of Mendeleev's classification of elements.
Answer» State the merits of Mendeleev's classification of elements.

Discussion

29.	Question 30Oxygen is harmful to:(a) ferns(b) nitrogen-fixing bacteria(c) chara(d) mango tree
Answer» Question 30 Oxygen is harmful to: (a) ferns (b) nitrogen-fixing bacteria (c) chara (d) mango tree

Discussion

30.	Explain about the following.(a) Single bond(b) Double bond(c) Triple Bond
Answer» Explain about the following. (a) Single bond (b) Double bond (c) Triple Bond

Discussion

31.	An alloy is a ___________ .
Answer» An alloy is a ___________ .

Discussion

32.	The formal charge on carbon atom in carbonate ion is(1) +1(2) -1(3)+
Answer» The formal charge on carbon atom in carbonate ion is(1) +1(2) -1(3)+

Discussion

33.	For a reversible system, what happens when the pressure of the reacting system in equilibrium is increased:
Answer» For a reversible system, what happens when the pressure of the reacting system in equilibrium is increased:

Discussion

34.	A: CH3COOH can't be reduced by LiAlH4 directly .R: It is an acid-base reaction.a) both the statements are true and R is the correct explanation of A.b) both the statements are true but R is not the correct explanation of A.c) A is correct but R is false.d) both the statements are false.
Answer» A: CH3COOH can't be reduced by LiAlH4 directly . R: It is an acid-base reaction. a) both the statements are true and R is the correct explanation of A. b) both the statements are true but R is not the correct explanation of A. c) A is correct but R is false. d) both the statements are false.

Discussion

35.	Hydrogen atoms in the ground stateare exitedby monochromatic light of energy12.1eV. The spectral lines emitted by hydrogen according to Bohr's theory will be
Answer» Hydrogen atoms in the ground stateare exitedby monochromatic light of energy12.1eV. The spectral lines emitted by hydrogen according to Bohr's theory will be

Discussion

36.	Q. What is titration ?
Answer» Q. What is titration ?

Discussion

37.	What is meant by mole concept?
Answer» What is meant by mole concept?

Discussion

38.	What kind of reaction is photosynthesis exothermic or endothermic?
Answer» What kind of reaction is photosynthesis exothermic or endothermic?

Discussion

39.	15. What is the structural formula of But-1-en-3-amine ?
Answer» 15. What is the structural formula of But-1-en-3-amine ?

Discussion

40.	Q 39/90 The most ionic halide among the following is 1.CCl4 2.AICI3 3.MgCl 4.NaCl
Answer» Q 39/90 The most ionic halide among the following is 1.CCl4 2.AICI3 3.MgCl 4.NaCl

Discussion

41.	When ammonium hydroxide reacts with nitric acid, the products formed are:
Answer» When ammonium hydroxide reacts with nitric acid, the products formed are:

Discussion

42.	why 4 chloro benzoic acid id more acidic than 4,fluro benzoic aci
Answer» why 4 chloro benzoic acid id more acidic than 4,fluro benzoic aci

Discussion

43.	What happens when carbon dioxide gas is passed through lime water.
Answer» What happens when carbon dioxide gas is passed through lime water.

Discussion

44.	Which of the following has the least bond angle?
Answer» Which of the following has the least bond angle?

Discussion

45.	8. A scientist take 259ml acid whose basicity is 4 and molarity is 106mol//L.Then he soothed 200ml alkali by adding the acid into the alkali.If acidity of the alkali is 2 then find molarity of the alkali?
Answer» 8. A scientist take 259ml acid whose basicity is 4 and molarity is 106mol//L.Then he soothed 200ml alkali by adding the acid into the alkali.If acidity of the alkali is 2 then find molarity of the alkali?

Discussion

46.	The following 1, 2 diol undergoes the pinacol rearrangement. Predict the product.
Answer» The following 1, 2 diol undergoes the pinacol rearrangement. Predict the product.

Discussion

47.	Is partial differentiaon same as differentiaon
Answer» Is partial differentiaon same as differentiaon

Discussion

48.	What is mean by saying that water is a week electrolyte?
Answer» What is mean by saying that water is a week electrolyte?

Discussion

49.	What is the hybridisation of borazine.
Answer» What is the hybridisation of borazine.

Discussion

50.	Potassium ferrocyanide is
Answer» Potassium ferrocyanide is

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

CFC usage is more in modern days because it is

in an adiabatic process if pressure P and density d of a monoatomic gas are related as P is proportional to d^{x }then x is eq

64. Why lyophilic sols 1)are highly hydrated. 2)have much higher viscosity than medium. 3)usually have lower surface tension than that of the medium.?

39. first second and third ionization enthalpy of aluminium 578, 1817 ,and 2745 KJ per mole respectively. calculate energy required to convert all the atoms of Al into Al+3 present in 270 milligrams of aluminium vapours 51402KJ 5 1.40 kJ 2745 kJ 514.0 kJ

Saturated hydrocarbons contain C atoms joined by a ___ covalent bond.

Chalk is:

Which of the following metal is always a constituent of an amalgam?

The molecular formula of the third member of the homologous series of ketones is : (a) C4H8O (b) C3H6O (c) C5H10O (d) C6H12O

22. Which allotropes of sulphur is known as flower of sulphur?

Write the important uses of acetic acid.

31.mixture of carbon dioxide and carbon monoxide is passed over red hot graphite when 1 ole of mixture changes to 33.6L (converted at STP) hence mole fraction of carbon dioxide in the mixture is

Question 13 In the soil, which nutrient is enriched by blue-green algae (cyanobacteria)?

What are alkaline earth metals?

Acetic acid is a typical acid. Write one equation in each case for its reaction with (a) a metal, (b) a base/alkali, (c) a carbonate, (d) a bicarbonate.

What is the chemical formula of 'Mica'?

How does sulphuric acid occur in nature?

Rewrite the sentence by removing ‘too ... to’. The water is too toxic to be consumed.

A solution X gives orange colour when a drop of universal indicator is added to it. In the other hand, another solution Y gives blueish green colour when a drop of universal indicator is added to it. What are the types of solution X and Y and what type of pH would they have?

The rate of oxidation of chloroform decreases in the presence of alchohol. alchohol is a/an ___ for this reaction.

What does a word mean thrust

In the below reaction, the structural formula of (A), “X” and “Y” respectively are:

Electron affinities of two elements A and B are given below:A = 3.79 electron voltsB = 3.56 electron voltsWhich of them will ionize more easily and why?

THE HYBERDIZATION OF Cr IN COMPLEX[Cr(NO2)4(NH3)2]-

Soil conservation can best achieved by having:

(g) From the elements given below name the following:Li, Be, B, C, N, O, F, Ne.(i) Most electronegative element.(ii) Which element has highest electron affinity?(iii) Most metallic element?(iv) Which element has the largest size?(v) Name the tetravalent element.

At which trophic level a person is feeding when he is eating : (a) roasted chicken (b) bread (c) eggs (d) apple (e) fish

State the merits of Mendeleev's classification of elements.

Question 30Oxygen is harmful to:(a) ferns(b) nitrogen-fixing bacteria(c) chara(d) mango tree

Explain about the following.(a) Single bond(b) Double bond(c) Triple Bond

An alloy is a ___________ .

The formal charge on carbon atom in carbonate ion is(1) +1(2) -1(3)+

For a reversible system, what happens when the pressure of the reacting system in equilibrium is increased:

A: CH3COOH can't be reduced by LiAlH4 directly .R: It is an acid-base reaction.a) both the statements are true and R is the correct explanation of A.b) both the statements are true but R is not the correct explanation of A.c) A is correct but R is false.d) both the statements are false.

Hydrogen atoms in the ground stateare exitedby monochromatic light of energy12.1eV. The spectral lines emitted by hydrogen according to Bohr's theory will be

Q. What is titration ?

What is meant by mole concept?

What kind of reaction is photosynthesis exothermic or endothermic?

15. What is the structural formula of But-1-en-3-amine ?

Q 39/90 The most ionic halide among the following is 1.CCl4 2.AICI3 3.MgCl 4.NaCl

When ammonium hydroxide reacts with nitric acid, the products formed are:

why 4 chloro benzoic acid id more acidic than 4,fluro benzoic aci

What happens when carbon dioxide gas is passed through lime water.

Which of the following has the least bond angle?

8. A scientist take 259ml acid whose basicity is 4 and molarity is 106mol//L.Then he soothed 200ml alkali by adding the acid into the alkali.If acidity of the alkali is 2 then find molarity of the alkali?

The following 1, 2 diol undergoes the pinacol rearrangement. Predict the product.

Is partial differentiaon same as differentiaon

What is mean by saying that water is a week electrolyte?

What is the hybridisation of borazine.

Potassium ferrocyanide is