NDA General Ability 10 April 2022 | Chemistry Question 77 | General Science

NDA General Ability 10 April 2022

MCQ (Single Correct Answer)

-1.33

Which one of the following reactions is an example of decomposition reaction?

CH4 (g) + 2O₂ (g) → CO2(g) + 2H2O(g)

2AgCI(s) $\rm \xrightarrow{Sunlight} $ 2Ag(s) + CI₂(g)

CuO + H₂$\rm \xrightarrow{Heat} $ Cu + H₂O

Fe(s) + CuSO₄ (aq) → FeSO₄ (aq) + Cu(s)

NDA General Ability 18 April 2021

MCQ (Single Correct Answer)

-1.33

Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds?

Bleaching powder

Baking soda

Plaster of Paris

Washing soda

NDA General Ability 18 April 2021

MCQ (Single Correct Answer)

-1.33

LED (a semi-conductor device) is an abbreviation that stands for

Licence for Energy Dectector.

Light Energy Device.

Light Emitting Diode.

Lost Energy Detector.

NDA General Ability 18 April 2021

MCQ (Single Correct Answer)

-1.33

Which one of the following is the chemical formula of Hypobromous acid?

HBrO₄

HOBr

HBr

HBrO₃

NDA Subjects

English

General Science

General Studies