S P Singh Solutions for Chapter: Review Questions, Exercise 1: REVIEW QUESTIONS I.C.S.E. Questions set in previous years

Name two process which remove carbon dioxide from the atmosphere.

Study the reaction scheme below and then answer which fallow:

Give the chemical name and formula of marble, gas A and solid B

Study the reaction scheme below and then answer which follow:

What would you accept to see (or observe) when drops of water are added to solid calcium oxide ?

Study the reaction scheme below and then answer which fallow:

Review the following sentences filling in the blanks:

Solution X is normally called..................................

Study the reaction scheme below and then answer which fallow:

On bubbling essence of gas A through the resulting suspension the white precipitate dissolves and then reappears by boiling. Suggest an explanation for these observations.

Explain the following: A white crust forms on the surface of lime water that has been exposed to the air.

State your observation and give balanced equation of the reaction when carbon dioxide passed through clear lime water for a short time.

State your observation and give balanced equation of the reaction when carbon dioxide passed through clear lime water for a long time.