Question # 1

The average energy due to movement of molecules in a substances is called.

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Potenital energy

Electric energy

Kinetic energy

Chemical energy

Water and dissolved salts ae conducted from roots to leaves by.

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Root haris

Xylem

Phloem

Stomata

The loss of water from aerial parts of the plants.

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Respiration

Photosynthesis

Evaporation

Transpiraton

Valency of nitrogen is

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1

2

3

4

Zince oxide is ............... solid substances.

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Red

White

Yellow

Blue

The flat green part of leaf is called.

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Blade

Lamina

Both a and b

None of these

Which of teh following is cation.

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H2

H2O

CO2

NH+4

The charge present on atom is

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Positive

Negative

Both a and b

Neutral

Original colur or Nichrome wire is.

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Silver grey

Red hot

White hot

None of these

The lowest pointof a wave is................

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Crest

Amplitude

Peak

Trough

Sajeet the one that is different from the otehrs.

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Solubility

Conductance

Oxidation

Coiling of a substance

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