Question # 1

SI unit of mass is.

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Gram

mg

kg

all of above

A concentrated solution can dissolve in it.

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No further amount of solute

Less quantity of solute

Large quantity of solute

Amount of solute equal to amount of solvent

Chemical reaction of oxygen with other substances is called.

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Oxidation

Reduction

Rusting

None of these

Oxygen is a

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Monoalent element

Divalent element

Trivalent element

Tertravalent element

The first cell formed due to the fusion of reproductive cells in plants in called.

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Embryo

Zygote

Root

Stem

The flat green part of leaf is called.

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Blade

Lamina

Both a and b

None of these

Element present in grops have same number of ....... in their outermost shell.

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Electron

Proton

Atoms

Neutron

A molecule consists of two or more

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Compounds

Atoms

Formulae

Element

Bacteria move with the help of.

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DNA

Legs

Arm

Flagella

The temerature o boiling water in centigrade scale is.

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0 oC

32 oC

37 oC

100 oC

Sound cannot pass through.

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Solid

Liquid

Vacuum

Gasses

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