Question # 1

Unit of Pressure is

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Joule

Newton

Nm2

Nm-2

Glalieo invent and used telescope firstly in.

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1910

1911

1901

1909

The product fo the reaction between zinc and dilute sulphuric acid are.

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Zinc oxide and water

Zinc sulphide and water

Zinc sulphate and hydrogen

Zinc sulphide and hydrogen

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

Type of cell division, whihc take place in all parts of plants and animals is.

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Meiosis

Mitosis

Nuclear division

Cytokinesis

Speed of light through air is about.

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300000 km/s

250000 km/s

225000 km /s

200000 km /s

The rate of flow of charged is called.

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Volt

Ohm

Current

Coulomb

As we go up in the air.

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Atmospheric pressure increases

Atmospheric pressur edecreases

Atmospheric pressur edoes not change

Atmosphericpressur ebecomes zero at the height of 1 km

hardest matter on the Earth is.

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Lead

Diamond

Brick

Urea

You are different from your brother and sisters This is called

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Adaptation

Variation

Mitosis

Hereditary

Fire works is an example of ........... reactions.

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Addition

Exothermic

Endothermic

Decomposition

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