Question # 1

The humna circulatory system is consist of

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Heart

Blood

Blood vessels

All of these

Which of the following is most excellent solvent.

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Sulphuric acid

Acetic acid

Water

Ammonia

Components of binary solutions are.

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1

2

3

4

Example of solid in solid solution is.

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Air

Salt solution

Brass

Sea water

Which of the following is an anion.

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F

Cl

S-2

NH3

Irigation has methods.

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One

Two

Three

Four

Large number of sotmata are found on.... side of leaf.

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Lower

Upper

Middle

None of these

Letter K is used to express theshell around the nucleus of an atom.

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1st

2nd

3rd

4th

There are ............ groups in periodic table.

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2

8

18

32

The Earth completes one revolutin around the Sun in days.

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28

29

365

370

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