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Chemistry

Chemistry
Galvanization of iron is carried out using

Zinc
Chromium
Tin
Copper

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Chemistry
The element which is used for vulcanizing rubber

Phosphorus
Bromine
Sulphur
Silicon

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Chemistry
J.J. Thomson’s proposed model of atom is generally called ________ model.

Plum and pudding
Cream and cake
Cream and pudding
Plum and cake

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Chemistry
The high reactivity of fluorine is due to

availability of d-orbitals
its high electro negativity
small size of fluorine atom
strong F - F bond

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Chemistry
Which among the following elements is found in maximum percentage in the human body ?

Hydrogen
Oxyzen
Nitrozen
Carbon

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Chemistry
Which of the following is used as a preservative to protect processed food?

Saccharin
BHT
Sodium sulphate
Sodium metabisulphite

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