1
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

What is the oxidation state of Vanadium in $V_2O_5$?

A

+2

B

+4

C

+3

D

+5

2
NDA General Ability 21 April 2024
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
(Allotrope of Carbon)
List-II
(Property)
A. Graphite 1. Thinnest and strongest material
B. Diamond 2. Hardest natural substance
C. Fullerene 3. Very light and strong material
D. Graphene 4. Soft and slippery material
A
A B C D
4 2 3 1
B
A B C D
4 3 2 1
C
A B C D
1 3 2 4
D
A B C D
1 2 3 4
3
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Water gas is a mixture of:

A

CO₂ and H₂

B

CO and H₂

C

CO₂ and H₂O

D

CO and H₂O

4
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Which one among the following statements with reference to the properties of water is not correct?

A

The specific heat of water is abnormally high.

B

Latent heat of fusion of water is very low.

C

Density of water is higher than ice.

D

Pure water is a non-conductor of electricity.

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