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 31
The molecule which has the highest percentage of ionic character among the following is

A
HI
B
HF
C
HCI
D
HBr
Correct Answer: Option B

No answer description available for this question.

Question 32
The metal does not give H2 on treatment with dilute HCL is

A
Zn
B
Fe
C
Ag
D
Ca
Correct Answer: Option C

No answer description available for this question.

Question 33
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

A
1 gram of molecule
B
0.5 gram of molecule
C
5 gram of molecule
D
10 gram of molecule
Correct Answer: Option C

No answer description available for this question.

Question 34
The most extensive, commercially useful source of thorium as monazite sand occurs in India at

A
Orissa coast
B
Travancore coast
C
West Bengal coast
D
Gujarat coast
Correct Answer: Option B

No answer description available for this question.

Question 35
The main active constituent of tea and coffee is

A
nicotine
B
chlorophyll
C
caffeine
D
aspirin
Correct Answer: Option C

No answer description available for this question.

Question 36
The maximum number of isomers for an alkene with molecular formula C4H8 is

A
5
B
4
C
2
D
3
Correct Answer: Option B

No answer description available for this question.

Question 37
The hardest form of carbon is

A
coke
B
graphite
C
diamond
D
charcoal
Correct Answer: Option C

No answer description available for this question.

Question 38
The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

A
1/6
B
1/3
C
1/8
D
1/4
Correct Answer: Option C

No answer description available for this question.

Question 39
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

A
4
B
5
C
2
D
Zero
Correct Answer: Option A

No answer description available for this question.

Question 40
The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in

A
1.8 gram of H2O
B
12 moles of KMnO4
C
0.6N H2SO4
D
4.6 gram of C2H5OH
Correct Answer: Option B

No answer description available for this question.

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