Assertion :There is a carbon carbon double bond in the ethylene molecule. Reason: Hybrid orbitals can form both sigma and pi bonds.
Assertion
Lithium sulphate does not form alums.
Reason
Li+ is too small to form a stable lattice required for double-salt/alum formation.
Assertion (A) Phenol forms 2, 4, 6-tribromophenol on treatment with Br2 in carbon disulphide at 273K. Reason (R) Bromine polarises in carbon disulphide. (a) Assertion and reason both are correct and reason is correct explanation of assertion. (b) Assertion and reason both are wrong statements. (c) Assertion is correct statement but reason is wrong statement. (d) Assertion is wrong statement but reason is correct statement. (e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.
Assertion (A) Boiling points of alcohols and ethers are high. Reason (R) They can form intermolecular hydrogen-bonding. (a) Assertion and reason both are correct and reason is correct explanation of assertion. (b) Assertion and reason both are wrong statements. (c) Assertion is correct statement but reason is wrong statement. (d) Assertion is wrong statement but reason is correct statement. (e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.