Question # 1

Elements of group 17 are called.

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Carbon family

Noble gases

Nitrogen family

Halogen family

The last stage in the life of massive star is

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Red Gaint

White dwarf

Super Giant

Black hole

Acid used as a dehydrating agent.

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Nitric Acid

Phosphoric acid

Sulphuric acid

Hydrochloric acid

Surface temperature of the Sun is

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3000 oC

6000 oC

15000 oC

1,500,000 oC

A process by which a cell divides into two daughter cells.

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Life Cycle

Cell division

Cell Cycle

Alternationof generation.

Sodium carbonate is an importnatsalt used for many purposes in indusies. Which acid is reacted with sodium hydroxide to get it.

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Oxalic acid

Citric acid

Acetic Acid

Carbonic acid

The best material to be used as a core in the coils for making electromagnet is.

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Rubber

Plastic

Soft Iron

Steel

Genetically modified organisms are used to produce.

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Insulin

Vaccines

Protein

Insulin and Vaccines

The king of chemiclas is

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KOH

HCl

NaCl

H2SO4

The age of milky way Galaxy is about.

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13.6 billion years

13.4 billion years

13.5 billion years

13.7 bilion years

All parts of the nervous system. i.e. brain , spinal cord and nerves are made up of.

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CNS

PNS

Neurons

Nerve impulses

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