Chemistry MCQs:

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"Never tell the truth to people who are not worthy of it."

― Mark Twain

Science-Chemistry-Multiple Choise Questions & Answers

প্রতিটি প্রশ্নের জন্য চারটি করে উত্তর থাকবে যার একটি সঠিক, বামদিকে A, B, C এবং D এর উপর ক্লিক করে সঠিক উত্তরটি দেখতে পারেন। যদি উত্তর সঠিক হয় তবে অপশনটির ডান দিকে টিক () আর উত্তর ভূল হলে ক্রস () চিনহ প্রদ্ররশিত হবে।

#: 1. What is the PH value for pure water at 25 degrees celsius?

D.

11

#: 2. What gas is used for photography lamps

A.

Methane and Nitrous oxide

B.

Ozone and Carbon dioxide

C.

Nitrogen and Neon

D.

Krypton and Xenon

#: 3. Which of the following is ethyl alcohol structure?

A.

C3H8O

B.

CH3OH

C.

C2H6O

D.

C3H6O2

#: 4. Which is the hardest form of carbon in the nuture?

A.

Graphite

B.

Coke

C.

Coal

D.

Diamond

#: 5. Which metal does not give H2 on treatment with dilute HCL acid?

A.

Zinc (Zn)

B.

Calcium (Ca)

C.

Silver (Ag)

D.

Iron (Fe)

#: 6. which type of carbohydrate is used in silvering of mirrors?

A.

Cellulose [(C6H10O5)n]

B.

Glucose (C6H12O6)

C.

Maltose (C12H22O11)

D.

Ribose (C5H10O5)

#: 7. Which type of glass is heat resistant?

A.

Borosilicate glass

B.

Hard glass

C.

Flint glass

D.

Pyrex glass

#: 8. Which gas is used for artificial ripening of green fruit?

A.

Ethylene gas (C2H4)

B.

Acetylene gas (C2H2)

C.

Methane gas (CH4)

D.

Carbon dioxide gas (CO2)

#: 9. Which of the following is table (diet) salt?

A.

Sodium chloride (NaCl)

B.

Potassium chloride (KCl)

C.

Zinc sulphate (ZnSO4)

D.

Calcium sulphate (CaSO4)

#: 10. Nail polish remover contains________.

A.

Acetic acid (CH3COOH)

B.

petroleum ether (C6H14)

C.

Acetone (C3H6O)

D.

Benzene (C6H6)

1 2 3 4 5 6 7 8 9

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