Q. Wood is the main raw material for the manufacture of

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Q. Rayon is chemically

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Q. Optic fibres are mainly used for which of the following?

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Q. The major ingredient of leather is

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Q. What are the soaps?

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Q. How does common salt help in separating soap from the solution after saponification?

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Q. In vulcanisation, natural rubber is heated with

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Q. Deep blue colour is imparted to glass by the presence of

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Q. Glass is made of the mixture of

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Q. The vast resources of unutilised natural gas can be used in the production of

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Q. Paper is manufactured by

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Q. Gypsum is added to cement clinker to

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Q. Soap is a mixture of sodium or potassium salts of

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Q. The type of glass used in making lenses and prisms is

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Q. Which one of the following is the petroleum wax?

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Q. The Shape of the Andromeda galaxy is

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Q. Which is one of the closest galaxies near Milky Way galaxy

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Q. Distance of Andromeda from Milky Way galaxy is

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Q. Anesthesia was invented in

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Q. The 'Asteroids' that are made up of silicate rocks and clay are known as

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