Question # 1

An empty steel container is sealed and heated, which of the following properties of the gas is likely to increase.

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Mass

Pressure

Volume

Density

A piece of iron is kept in open air for 5 days. A film of corrosion formed over it is.

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Iron oxide

Iron sulphide

Iron Chloride

Iron Hydride

The white blood cells are stored by

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Tonsils

Appendix

Spleen

None of these

Valency of nitrogen is

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1

2

3

4

What is transferred by teh movement of waves.

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matter

energy

both a and b

None of these

When a 10 cm iron rod is heated to hgh tempeature.

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Its volume decreases

Its volume increases

Its density deceases

Its density increses

Bacteria move with the help of.

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DNA

Legs

Arm

Flagella

The ... prevents food from entering the trachea.

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Glottis

Epiglottis

Bronchi

Alveoli

The genetic material of virus is called.

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Genome

Coat

Capsid

Spike

Which artery supply blood to the heart

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Pulmonary artery

Hepatic artery

Coronary Artery

Aorta

The part of the heart which receives blood from lungs.

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Left atrium

Right atrium

Left ventricle

Right ventricle

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