Question # 1

A substance that speed up the chemical reactions is called.

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Solute

Solvent

Solution

Catalyst

Right atrium receives.

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Oxgynated blood

Deoxygenated blood

BOth types of blood

no blood

The part of the heart which receives blood from lungs.

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Left atrium

Right atrium

Left ventricle

Right ventricle

The particle of an atom having negative charge on it.

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Electron

Proton

Neutron

Nucleus

The negetively charged particle arod nucleus are called.

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Electron

Proton

Atom

Neutron

Billins of new blood cells are produced daily in

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Heart

Lever

Spleen

Bone -marrow

In .... elements are arranged in order of increasing atomic numbers.

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Group

Period

Orbit

Shell

A batsman hits the ball back towards the bowler, which effect of force is seen.

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change of shape

Change of direction

Change of stae from motion to rest

Change of state form rest to motion.

The speed of sound in air is.

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100 m/s

300 m/s

100 m/s

330 m/s

Which of the following is most excellent solvent.

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Sulphuric acid

Acetic acid

Water

Ammonia

Aerobic respiation takes place in.

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Mitochondria

Chloroplast

Nucleus

Blood vessels

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