General Science MCQs

chemistry Questions with solutions MCQs

1. Inert gases are:

A

Not stable

B

Miscible with water

C

Chemically unreactive

D

Chemically very active

Chemistry Veterinary Pharmacist 2024
Correct Answer : C
Explanation :

Inert gases (noble gases) are chemically unreactive.

Correct Answered :

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2. Most toxic metal pollutant of automobile exhaust is which of the following?

A

Cadmium

B

Lead

C

Copper

D

None of these

Chemistry JKPSI 2022 CBT
Correct Answer : B
Explanation :

<span>Lead</span>

Correct Answered :

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3. The infertile Saline soils contain largely proportion of which of the following?

A

Zinc, Sodium and Magnesium

B

Copper, Sodium and Potassium

C

Sodium, Potassium and Magnesium

D

Bronze, Magnesium and Sulphur

Chemistry JKPSI 2022 CBT
Correct Answer : C
Explanation :

<div style="text-align: justify;">Saline soils contain a larger proportion of <b>sodium, potassium, and magnesium</b>, and thus, they are infertile and do not support any vegetative growth. They have more salts, largely because of the dry climate and poor drainage.</div>

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