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 Chemistry Questions

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Q:

The residual attractive or repulsive forces between molecules or atomic groups that do not arise from a covalent bond, or ionic bonds is called _____

A) Neutral Bond B) Non Polar Bond
C) Electro Valence bond D) Van der Walls bond
 
Answer & Explanation Answer: D) Van der Walls bond

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Q:

........... compound is used as a drying agent.

A) Calcium oxide B) Calcium carbide
C) Gypsum D) Calcium carbonate
 
Answer & Explanation Answer: A) Calcium oxide

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Q:

Rusting is _____.

A) Electrolysis B) Oxidation
C) Redox reaction (Oxidation and Reduction) D) Reduction
 
Answer & Explanation Answer: C) Redox reaction (Oxidation and Reduction)

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Q:

Which of the following is used as anaesthetics?

A) N2 B) N2O
C) CH4 D) CO2
 
Answer & Explanation Answer: B) N2O

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Q:

Which drug is used as a Nonsteroidal anti-inflammatory drug?

A) Risedronate B) Diazepam
C) Folic Acid D) Ibuprofen
 
Answer & Explanation Answer: D) Ibuprofen

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Q:

The property of metals by which they can be beaten into thin sheets is called _______________.

A) ductility B) malleability
C) viscosity D) tensile strength
 
Answer & Explanation Answer: B) malleability

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Q:

Which process usually requires water?

A) Physical weathering B) Mass wasting
C) Chemical weathering D) Erosion
 
Answer & Explanation Answer: C) Chemical weathering

Explanation:

Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

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Q:

Besides CO2, the other green house gas is

A) CH4 B) N2
C) Ar D) O2
 
Answer & Explanation Answer: A) CH4

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