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Chemistry

Chemistry
How many electrons can be accommodated in d-orbital

10
3
8
6

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Chemistry
The substance that is added to make natural rubber strong and more bouncy is

Sulphur
Sponge
Polythene
Chlorine

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Chemistry
Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ?

Iron and cadmium
Lead peroxide and lead
Zinc and carbon
Nickel and cadmium

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

4.05 gram
3.05 gram
5.05 gram
2.05 gram

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Chemistry
24 carat of diamond is equal to

200 mg
95% mg
200 g
91% gold

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Chemistry
The material known in commerce as Terylene is a

Modified natural fibre
Synthetic fibre
Natural fibre
Blend of cotton and silk

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