The value of the H-C-H bond angle in a methane molecule is – (a) 109°28' (b) 108°29' (c) 100° (d) 180°

Write one use of PVC.

Write the IUPAC name of the organic compound: CH₃–CH(OH)–CH₃

Write down the structural formula of the principal constituent of LPG. OR Write down the structural formula of 1, 1, 2, 2 tetrabromoethane.

Write down the names of two organic compounds with different functional groups designated by the formula C2H6O.

Which compound is used to prepare melamine ?

Draw the structural formula of a saturated hydrocarbon containing two carbon atoms.

Write one use of denatured spirit.

Write IUPAC name for CH3CH=CH2 [1] OR What is the disposition of the four valencies of carbon in methane?

Which of the following is an alcohol? CH3OCH3 CH3CHO CH3COOH CH3CH2OH

Write the balanced chemical equation for the reaction between acetic acid and sodium bicarbonate. Between jute and polythene, which one is eco-friendly for packaging purposes and why? [1+2]

Write the balanced chemical equation for the addition reaction of hydrogen with acetylene and mention any two conditions for the reaction. [3]