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प्रश्न
Give reason for the following:
Solid carbon dioxide is used for refrigeration of food.
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उत्तर
Solid carbon dioxide serves as a coolant and refrigeration for preserving food articles.
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संबंधित प्रश्न
What happens when carbon dioxide is passed through lime water first in small amounts and then in excess ?
Fill in the blank
....................... is formed when carbon is burnt in a limited supply of air or oxygen.
Fill in the blank:
Carbon monoxide is a products of..................combustion.
Give two uses of carbon monoxide.
Why is carbon monoxide called silent killer ?
Explain the reducing action of carbon monoxide.
‘When carbon dioxide is bubbled into lime water, the lime water turns milky and when bubbled in excess the milkiness disappears’. Give balanced equations to support the statement.
Give reason why carbon monoxide is considered a highly poisonous gas. State why it is dangerous to sleep in a closed room with a fuel burning.
Give a balanced equation for the following conversion: [In one or two steps]
Lime water [soln. of calcium hydroxide] to calcium bicarbonate.
Give reason for the following:
Lime water finds application for testing both carbon dioxide & carbon monoxide gas individually.
