Chemistry MCQs

Latest MCQs

Which gas is filled in electric bulb...?

(i) Nitrogen
(ii) Oxygen

(iii) Carbon dioxide
(iv) None of these

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Latest MCQs

splitting of water into hydrogen and oxygen is an example of ______...?

(i) Evaporation
(ii) Condensation

(iii) Decomposition
(iv) Sublimation

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Latest MCQs

Which of the following metals is not only magnetic but also radioactive...?

(i) Thorium
(ii) Aluminum

(iii) Iron
(iv) None of these

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Latest MCQs

Abdul Qadeer Khan died on ______...?

(i) 09 October 2021
(ii) 10 October 2021

(iii) 11 October 2021
(iv) 13 October 2021

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Latest MCQs

Brass gets discolored in air because of the presence of which of the following gases in air:...?

(i) Carbon dioxide
(ii) Hydrogen sulfide

(iii) Nitrogen
(iv) Oxygen

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Latest MCQs

Diamond is an allotropic form of:...?

(i) Germanium
(ii) Carbon

(iii) Silicon
(iv) Sulphur

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Latest MCQs

The formula of Quartz is:...?

(i) SiO2
(ii) Nacl

(iii) SiO4
(iv) None of these

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Latest MCQs

Which is the oldest freezing method:...?

(i) Contact freezing
(ii) Flash freezing

(iii) Brine freezing
(iv) None of these

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Latest MCQs

What is the chemical formula of washing soda...?

(i) Na2CO3
(ii) NaHCO3

(iii) Na2CO3
(iv) Na2CO3.10H2O

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Latest MCQs

Cooking gas is also called...?

(i) Butane
(ii) Hexane

(iii) Propane
(iv) LPG

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