MCQS for Chemistry , O level

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1. Who is called the father of modern chemistry?
(A) C.V. Raman
(B) Bill Gates
(C) Einstein
(D) Lavoisier

2. Most of the aquatic animals cannot survive above?
(A) 33 °C
(B) 35 °C
(C) 65 °C
(D) 30 °C

3. Which is not a type of elements?
(A) Metals
(B) Non Metals
(C) Metalloids
(D) Gases

4. Which one of the following disease is caused by mercury?
(A) Aids
(B) Cholera
(C) Parkinson
(D) Typhoid

5. Which acid is present in lemon?
(A) Citric acid
(B) Tartaric acid
(C) Uric Acid
(D) Malic acid

6. The blister copper is refined by?
(A) Electrolysis
(B) Freezing
(C) Boiling
(D) Reduction

7. The chemical formula of Urea is?
(A) NH2CONH2
(B) Na2HCHO3
(C) NH2COONH4
(D) NH4HCL

8. Rare gases are
(A) Tri atomic
(B) Mono atomic
(C) Di atomic
(D) None of above

9. Sodium carbonate is commercially manufactured by?
(A) Solvay Process
(B) Ostwald’s Process
(C) Frisch Process
(D) Haber’s Process

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MCQs for Chemistry of O level.

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