1099+ Important Chemistry MCQ Questions Answers

Q:

A) Mineral	B) Tribe
C) Grass	D) Town

Answer & Explanation Answer: C) Grass

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Q:

________ is used for making vinegar.

A) Tartaric acid	B) Malic acid
C) Oxalic acid	D) Acetic acid

Answer & Explanation Answer: D) Acetic acid

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Q:

In arc welding, Argon is used because of its

A) Low reactivity with metal	B) Ability to lower the melting point of the metal
C) High flammability	D) High calorific value

Answer & Explanation Answer: A) Low reactivity with metal

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Q:

Turquoise is an ore/mineral of

A) Copper	B) Manganese
C) Mercury	D) Tin

Answer & Explanation Answer: A) Copper

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Q:

Which of the following is used as non stick coating for cooking utensils?

A) Perspex	B) Styrofoam
C) Polystyrene	D) Teflon

Answer & Explanation Answer: D) Teflon

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Q:

Which one of the following is an ohmic conductor?

A) Germanium	B) Silicon
C) Carbon	D) Silver

Answer & Explanation Answer: D) Silver

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Q:

Which of the following elements has the lowest melting point?

A) Oxygen	B) Platinum
C) Sodium	D) Tin

Answer & Explanation Answer: A) Oxygen

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Q:

What is the process of melting also called?

A) Fusion	B) Galvanisation
C) Crystallisation	D) Evaporation

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