Chemistry SSC CGL Questions

SSC CGL-General Awareness
Chemistry

Chemistry MCQ Questions


13.

Acidic drain cleaners made of _________ or _________ acid are powerful enough to clear heavy-duty hair, food, grease, soap scum or paper-based clogs in 15 minutes or less.
SSC CGL 2021-20.04.2022-3

A.

formic, citric

B.

nitric, carbonic

C.

sulphuric, hydrochloric

D.

malic, lactic

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ANSWER :
C. sulphuric, hydrochloric
14.

How many carbon dioxide and water molecules will be there in the product side, if the following equation is made balanced?
C2H5OH+O2→CO2+H2O
SSC CGL 2024-26.9.2024-1

A.

3 and 6, respectively

B.

1 and 1, respectively

C.

2 and 3, respectively

D.

3 and 2, respectively

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ANSWER :
C. 2 and 3, respectively
15.
When you take Lead nitrate powder in a boiling tube and heat it, you will observe the emission of brown fumes that are of _________________ .
SSC CGL 2024-25.9.2024-2
A.
Nitrous oxide
B.
Nitric oxide
C.
Nitrogen dioxide
D.
Dinitrogen trioxide
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ANSWER :
C. Nitrogen dioxide
16.

Name the straight chain alkane having chemical formula C9H20, which is used as a research chemical and in making biodegradable detergents.
SSC CGL 2024-25.9.2024-2

A.

Nonane

B.

Dodecane

C.

Nonadecane

D.

Icosane

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ANSWER :
A. Nonane
17.
Which essential amino acid enhances calcium absorption and also plays an important role in the formation of collagen?
SSC CGL 2024-25.9.2024-1
A.
Arginine
B.
Tyrosine
C.
Lysine
D.
Histidine
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ANSWER :
C. Lysine
18.
According to Mendeleev's Periodic Table, which elements’ properties matched up remarkably well with eka-silicon?
SSC CGL 2024-25.9.2024-1
A.
Gallium
B.
Scandium
C.
Titanium
D.
Germanium
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ANSWER :
D. Germanium
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