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Q1)Oleum is a mixture of [AFMC 2000]




SOLUTION

H2SO4 + SO3 → H2S2O7 ( Oleum)
Answer: (b)


Q2) On heating O3 its volume




SOLUTION

Solution: 2O3 → 3O2
Two volume of O3 gives, Three Volume of O2
One volume of O3 will give 1.5 Volume of O2

Answer: (d)


Q3) Which of the following product is formed by the reaction of sulphur dioxide with chlorine in presence of sunlight: [2003]



SOLUTION

SO2 +Cl2 → SO2Cl2 ( sulphuryl chloride)
Answer:(b)



Q4) Which of the following gas mixture is used by the divers inside the sea? [2004]



SOLUTION

He is added with oxygen because of its smaller atomic radii. It can come out of tissue cell safely.
Answer: (a)


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