If the rate of diffusion of oxygen gas is taken as 1. What will be the rate of diffusion of methane whose relative molar mass is 16?
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1982
Brass is an alloy containing copper and
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1982
How many grammes of methyl acetylene (propyne) CH\(_3\)-C=CH will completely discharge the colour of 8g of bromine? (Br = 80, C = 12, H = 1)
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1982
In the preparation of carbon monoxide by heating ethanedoic acid with concentrated sulphuric acid, the conc. sulphuric acid acts as
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1982
Which of the following is a neutralization reaction?
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1982
Which of the following bonds exist in crystalline ammonium chloride (Ni4C1)?
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1982
The pressure on 100cm\(^2\) of oxygen gas at 35°C is 750mm of Hg. What would be the volume of the gas if the pressure is increased to 1000mm of Hg without changing the temperature?
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1982
A mixture contains 20cm\(^3\) of hydrogen, 35cm\(^3\) of oxygen. 15cm\(^3\) of carbon dioxide and 10cm\(^3\) of nitrogen at S.T.P, which of the following gives the mole fraction of hydrogen in this mixture?