1
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following alloys contains a non-metal as one of its constituent?
A
Brass
B
Bronze
C
Amalgam
D
Steel
2
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Buckminster fullerene, which looks like a football, is an allotropic form of
A
Phosphorus
B
Sulfur
C
Carbon
D
Tin
3
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Consider the following reaction:

Fe2O3(s) + 2Al(s) → 2Fe(s) + Al2O3(s)

Which of the following statements about the given reaction is NOT correct?

A
It is an example of displacement reaction
B
It is highly endothermic reaction
C
Fe2O3 acts as oxidizing agent
D
This reaction is applicable to joining of railway tracks
4
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Match List I with List II and select the correct answer using the code given below the Lists:

LIST I

(Chemical process)

LIST II

(Reaction)

A.

Electrolysis of water

1.

Double displacement
reaction

B.

Burning of coal

2.

Combination reaction

C.

Iron nail immersed in copper sulphate solution

3.

Decomposition reaction

D.

Addition of barium chloride solution to aluminium sulphate solution

4.

Displacement reaction

A
A - 3, B - 4,C - 2, D - 1
B
A - 4, B - 2,C - 1, D - 3
C
A - 3, B - 2,C - 4, D - 1
D
A - 4, B - 1,C - 2, D - 3
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