1
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Element X forms a chloride with the formula XCl₂, which is a solid with high melting point. X would most likely be in the same group of periodic table as
1
Na
2
Al
3
Mg
4
K
2
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following oxides is a neutral oxide?
1
CO
2
CO₂
3
Na₂O
4
 MgO
3
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is also known as Dry ice in its solid form?
1
SiO₂
2
CO₂
3
CaO
4
MgO
4
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements is NOT correct?
1
A scale measuring hydrogen ion concentration in a solution is called pH scale
2
The higher the hydrogen ion concentration in a solution, higher is its pH
3
We can measure pH generally from 0 to 14 on a pH scale
4
The 'p' in pH stands for 'potenz' in German meaning power
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