NDA General Ability 16 April 2023 | Chemistry Question 201 | General Science

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NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

-1.33

Airbags work on the principle of a chemical reaction triggered by the impact producing a gaseous product that causes a sudden volume change. Which one among the following chemical conversions is responsible for this?

Sodium azide into nitrogen gas

Solid carbon dioxide into gaseous carbon dioxide

Carbon dioxide into carbon monoxide

Sudden conversion of gaseous carbon dioxide into carbon monoxide

NDA General Ability 4 September 2022

MCQ (Single Correct Answer)

-1.33

Which one of the following is the correct reactivity series with water?

Zinc > Iron > Lead > Copper

Copper > Lead > Zinc > Iron

Copper > Zinc > Iron > Lead

Zinc > Copper > Iron > Lead

NDA General Ability 4 September 2022

MCQ (Single Correct Answer)

-1.33

Which one of the following metals floats in cold water?

Magnesium

Calcium

Potassium

Copper

NDA General Ability 4 September 2022

MCQ (Single Correct Answer)

-1.33

Which one of the following solutions is not capable of conducting electricity?

Copper sulphate

Sodium chloride

Sugar

Sodium hydroxide

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Questions Asked from Marks 4

NDA General Ability 13 April 2025 (13) NDA General Ability 21 April 2024 (14) NDA General Ability 3 September 2023 (19) NDA General Ability 16 April 2023 (16) NDA General Ability 4 September 2022 (13) NDA General Ability 10 April 2022 (15) NDA General Ability 18 April 2021 (15)