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प्रश्न
Give a chemical test to distinguish between the following pair of compounds:
Calcium nitrate gas and sulphur diaoxide gas
उत्तर
Calcium nitrate forms no ppt. even with addition of excess of NH4OH, whereas zinc nitrate forms a white gelatinous ppt. which dissolves in excess of NH4OH.
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संबंधित प्रश्न
What is the volume occupied by 48g of oxygen gas at STP?
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State your observation of the following case:
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What volume of oxygen at STP is required to affect the combustion of 11 litres of ethylene [C2H4] at 273°C and 380 mm of Hg pressure?
\[\ce{C2H4 + 3O2 → 2CO2 + 2H2O}\]
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- The number of molecules of sulphur dioxide present in the flask.
- The volume occupied by 3.2 g of sulphur dioxide at STP
(S = 32, O = 16)
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A gas is to be filled from a tank of capacity 10,000 litres into cylinders each having capacity of 10 litres. The condition of the gas in the tank is as follows:
- The pressure inside the tank is 800 mm of Hg.
- The temperature inside the tank is −3°C.
When the cylinder is filled, the pressure gauge reads 400 mm of Hg and the temperature is 270 K. Find the number of cylinders required to fill the gas.
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