Question

31 * 452, 3d CHEMISTRY XII Model Paper 2021 * 452, 3d104p * 32, 3p? 3:2, 3p66481 (v) Describe the extraction of sodium from rock salt on industrial scale (vi) What happens when (write equation) Nitric acid reacts with Phosphorous Sodium reacts with oxygen * Carbon mono oxide is treated with chlorine Aluminum is treated with H2SO3(conc.) (Organic Chemistry) (vii) Define the following. * Glycosidic linkage * Plasticizer * Aromaticity Homologous series ​

Answer 1

Answer:

v) On industrial scale sodium metal is extracted by "Down's Process". Down's Process is based on the electrolysis of fused NaCl.

vi ) Phosphine gas is formed.

P+3NaOH+3H2O−→−atm.Inert2NaH2PO2+PH3↑⏐⏐⏐

(ii) Nitrous oxide is envolved.

4Sn+(dil.)10HNO3→4Sn(NO3)2+N2O↑⏐+5H2O

(Sn→Sn+2,NOӨ3→N2O).