Top 100+general Science GK MCQ questions|General Science Chemistry MCQ questions & answers for Competitive exams

MCQ on General Science Chemistry 

General science GK is the one of the Important Subjects for Competitive exams. In The Central govt jobs exams & State Services exams The Science general Knowledge MCQ Questions are asked  From the Everyday Basic Science. 

Here in this article the Top important General Science Chemistry MCQ Questions are Presented ,which are always asked in the Previous year Questions Paper of the different Competitive exams like SSC ,CDS ,UPSC & State PCS .

These Chemistry MCQ  Questions & Answers are helpful for the Competitive aspirants and Students ,to know the What type of Chemistry Questions pattern actually asked the Competitive exams & University Entrance exams Paper.

10+General Science Chemistry MCQ for Competitive exams 

Here the top ten Science Questions based on Chemistry MCQ which are asked in the Many Exams in a Repetative manner,So Keep Focus These Chemistry MCQ Objective Questions ,which is Some how important for The Upcoming exams of 2021.

1. Which of the Following compunds are responsible for produced "acid Rain" ?

a) Nitrogen Dioxide & Sulfur Dioxide  

b)Sulfur Dioxide & Carbon Monoxide 

c) Silicon Oxide & Nitrogen oxide 

d)Carbon dioxide & Sulfur dioxide

Ans : A 

2. Which of the Following is the lightest gas ?

a) Nitrogen

b) Helium

c) Hydrogen

d) Carbon dioxide

Ans : C 

3. What is the Common name of Bleaching Powder ?

a) Calcium Carbonate 

c)Calcium Oxychloride

c)  Sodium Bicarbonate 

d) sodium Carbonate

Ans : C 

The Common name of Bleaching Power is Calcium Oxychloride Ca(OCl)_2. 

4. Which of the Following is use for Preparation of Bakelite ?

a)phenol & Acitic acid 

b)Phenol & Formal Dehyde 

c) Phenol & ethyl alcohol 

d)Benzene & Phenol 

Ans : B 

Phenol & Formal Dehyde use in Preparation of Bekelite,which use for Electrical appliances.

5.Which has the following fertilizers has more amount of nitrogen content ?

a) Potassium

b) Ammonium Nitrate 

c)Urea 

d) Ammonium Phosphate

Ans : C 

Urea is the Nitrogenous Fertilizer which Contains High Amount of Nitrogen Content ,which use for the Growth of plants. 

6. Which gas is filled in Aeroplane tyres ?

a)Oxygen 

b) Nitrogen 

c) Helium

d)

Ans : B 

Nitrogen gas are use for Filled the Aircraft Tyres.

7. Which of the following Chemical use for the Preservation of fruit juices ?

a)Sulfur dioxide 

a)Nitrate 

c) Sodium Benzoate  

d) Sorbic acid 

Ans: C 

Sodium benzoate is commonly use for preservation of fruit juices.

8. Which of the following alloy use to make Aircraft body ?

a)Steel

b) Alluminium 

c)bronze 

d)Nickel 

Ans : B 

Aluminium is the Lightest alloy,so its use to Make the body of Aircraft.

9. Which of the Following non Metal is the Good conductor of electricity ?

a) Selenium

b)Graphite

c) Silicon

d) Dimond

Ans : B 

Graphite Non Metal is the Good conductor of electricity,so it's use in Making of dry cells.

10. Which of the following Gas used in laughing gas ?

a) Sulfur dioxide 

b) Nitrous Oxide 

c)Carbon dioxide 

d)butane 

Ans : Nitrous Oxide used in Laughing Gas or Happy gas.

11.Which gas is used as a riot Control agent ?

a) Laughing Gas 

b)Tear gas 

c)Inert Gas 

d) Landfill gas 

Ans : B 

Tear gas or CS gas is used as a Riot control agent .

12.Which type of rock is Coal ?

a) Igneous rock

b) Sedimentary rock 

c) Metamorphic rock 

d)None of the Above 

13. What type of rock is granite ?

a) Igneous rock 

b) Metamorphic rock 

c) Sedimentary rock

d) Intrusive rock

Must read : General Science Physics MCQ Questions 

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