Acetylene, (ethyne) is preparaed in the labo-ratory when calcium carbide reacts with wa-ter. Write the chemical equation of the re-action for coverting it to ethane.

Complete the chemical equation for the re-action taking place when Aluminium hy-droxide is heated.

A,B and C are three gases (Symbols are nor real) Suppose 1 mole a react with 1 mole B to form 2 mole C. This is a reversible reaction. a) Write the chemical equation for the above reaction. b) What is the effect of pressure on this system? c) What will happen when more amount of 'A' is added to the system at equlibrium? d) What will happen if the amount of 'C' is increased?

C_(12)H_(22)O_(11) , CH_(3)CH_(2)COOH , CH_(3)CH_(2)Cl , CH_(3)CHO , CH_(3)CH_(2)CH_(2)OH , CH_(3)OCH_(3) when we react two compound among the given organic compound in the presence of sulphuric acid, a fragrant product is produced. 1. Choose the organic compounds which produced fragrant products after after reactions. 2. Write the chemical equation fo this reaction.

An organic compound A reacts with metalic sodium in ether medium to form ethane. A also reacts with magnesium in ether medium to give B, which on hydrolysis gives methane. Identify A and B. Write down the chemical equation involved.