General Knowledge

Chemistry - Section 1

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Chemistry - Section 1

Practice and master this topic with our carefully crafted questions.

10 Questions
15 Minutes
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Question 41
The National Chemical Laboratory is situated in

A
New Delhi
B
Bangalore
C
Pune
D
Patna
Correct Answer: Option C

No answer description available for this question.

Question 42
Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

A
2 : 16 : 2
B
2 : 16 : 1
C
1 : 16 : 2
D
1 : 1 : 1
Correct Answer: Option C

No answer description available for this question.

Question 43
The mass number of an atom is equal to

A
the number of protons
B
the number of protons and electrons
C
the number of nucleons
D
the number of neutrons
Correct Answer: Option C

No answer description available for this question.

Question 44
The nucleus of an atom consists of

A
electrons and neutrons
B
electrons and protons
C
protons and neutrons
D
All of the above
Correct Answer: Option C

No answer description available for this question.

Question 45
The number of moles of solute present in 1 kg of a solvent is called its

A
molality
B
molarity
C
normality
D
formality
Correct Answer: Option A

No answer description available for this question.

Question 46
The most electronegative element among the following is

A
sodium
B
bromine
C
fluorine
D
oxygen
Correct Answer: Option C

No answer description available for this question.

Question 47
The metal used to recover copper from a solution of copper sulphate is

A
Na
B
Ag
C
Hg
D
Fe
Correct Answer: Option D

No answer description available for this question.

Question 48
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

A
p-electrons in Ne(Z = 10)
B
s-electrons in Mg(Z = 12)
C
d-electrons in Fe(Z = 26)
D
p-electrons in CI(Z = 17)
Correct Answer: Option D

No answer description available for this question.

Question 49
The metallurgical process in which a metal is obtained in a fused state is called

A
smelting
B
roasting
C
calcinations
D
froth floatation
Correct Answer: Option A

No answer description available for this question.

Question 50
The number of waves in n x 10th Bohr's orbit are

A
n2
B
n
C
n-2
D
n3
Correct Answer: Option B

No answer description available for this question.

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