ICSE ICSE Class 8 - CISCE Question Bank Solutions

How would you prove experimentally that is slightly acidic in nature.

Starting from carbon dioxide how would you obtain a weak acid. 
[Give balanced equations for the same]

Starting from carbon dioxide how would you obtain a fertilizer.
[Give balanced equations for the same]

Starting from carbon dioxide how would you obtain a highly poisonous gas.
[Give balanced equations for the same]

Starting from carbon dioxide how would you obtain a black particles of carbon.
[Give balanced equations for the same]

State how you would convert carbon dioxide to a metallic carbonate using a basic oxide e.g. sodium oxide. [Give a balanced equation]

‘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.

Explain the term ‘dry ice’. State its application.

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 reason why carbon monoxide is considered a highly poisonous gas. State why it is dangerous to be in the vicinity of smokers.

Convert carbon monoxide to carbon dioxide using two different methods.

State how carbon monoxide finds application in the metallurgy of iron. [Give balanced equations for the same]

State how carbon monoxide finds application in preparation of an alcohol. [Give balanced equations for the same]

Name the following:

An acid formed when carbon dioxide is dissolved in water under pressure.

Name the following:

The gaseous product obtained when carbon monoxide is passed over heated iron [III] oxide.

Select the appropeiate option of the following statement:

The type of coal with the highest carbon conent.

Select the appropeiate option of the following statement:

An allotrope of carbon obtained by burning kerosene oil in a limited supply of air.

Select the appropeiate option of the following statement:

A nitrogenous fertilizer obtained from carbon dioxide.

Select the appropeiate option of the following statement:

A compound which finds use for a victim of carbon monoxide poisoning.

Give a balanced equation for the following conversion: [In one or two steps]

Coke to water gas.