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Chemistry

Chemistry
Which of the following is used in making smoke bombs?

Hydrogen
Carbon
Sulphur
Phosphorus

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Chemistry
Which of the following is not a donor atom?

Antimony
Aluminium
Arsenic
Phosphorus

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Chemistry
Which one of the following is used as a sowing agent in the preparation of soft drinks?

Phosphorus acid
Phosphoric acid
Boric acid
Salicylic acid

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Chemistry
The National Chemical Laboratory is situated in

Pune
New Delhi
Bangalore
Patna

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Chemistry
The heat required to raise the temperature of body by 1 K is called

specific heat
water equivalent
thermal capacity
None of these

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Chemistry
Suspension particles have the size between

10–5 – 10–7cm
10–1 – 10–2 cm
10–8 – 10–10cm
10–2 – 10–4 cm

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