1
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Galvanization is a method of protecting iron from rusting by coating with a thin layer of
A
Gallium
B
Aluminum
C
Zinc
D
Silver
2
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
3
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
4
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
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