29 Chro Lassagne test ne test 14 none Kjeldahl's method cannot be used for the estima tion of nitrogen in 1) Pyridine 12. Nitro compounds (3) Ano compounds + All of these 40. (3) Carbon

Property to be determined Method used for determination {:("(P) Estimation of carbon and hydrogen in an organic compound","(i) Lassaigne's test"),("(Q) Estimation of nitrogen in aniline","(ii) Carius method"),("(R ) Estimation of chlorine in carbon tetrachloride","(iii) Liebig's method"),("(S) detection of nitrogen, sulphur and halogens","(iv) Kjeldahl's method"):}

(a) how is a mixture of two organic compounds separated, which have different solubilities in the ame solvent? (b) How is an organic liquid purified which decomposes below its boiling point? (c) Why is sodium extract boiled with HNO_3 before testing for halogens? (d) What type of organic compounds cannot be estimated by Kjeldahl's method? (e). What does blood-red colouration during Lassaigne's test indicate? (f). What happens when AgNO_3 solumtion is added to bromo methane?

(a) how is a mixture of two organic compounds separated, which have different solubilities in the ame solvent? (b) How is an organic liquid purified which decomposes below its boiling point? (c) Why is sodium extract boiled with HNO_3 before testing for halogens? (d) What type of organic compounds cannot be estimated by Kjeldahl's method? (e). What does blood-red colouration during Lassaigne's test indicate? (f). What happens when AgNO_3 solumtion is added to bromo methane?

Match the following lists : List 1 List 2 Property to be determined Method used for determination ( A ) Molecular mass of a volatile oragnic solid 1. Silver salt method (B ) Molecular mass of anon-volatile organic solid 2. Liebig method ( C ) Estimation of chlorine in carbon tetrachloride 3. Platinichloride method ( D ) Estimation of nitrogen in aniline 4. Victor Meyer's method ( E ) Equivalent mass of an organic acid 5. Depression in freezing point ( F ) Equivalent mass of an organic base 7. Carius method ( G ) Estimation of carbon and hydrogen in an organic 7. Kjeldahl's method compound Codes :

1.2 g of an organic compound on Kjeldahlization liberates ammonia which consumes 30 cm^3 of 1 N HCI. The percentage of nitrogen in the organic compound is

An organic compound (A), C_(7)H_(6)O gives positives test with Tollen's reagent,on treatment with alcoholic CN, (A) yields the compound (B), C_(14)H_(12)O_(2) . Compound (B) on reduction with Zn-Hg, HCl and dehyration gives an unsaturated compound (C), compound (D) , C_(14)H_(12)O_(2) . Compound (D) on heating with KOH undergoes rearrangement and subsequent acidification of rearranged products yields an acidic compound (E),C_(14)H_(12)O_(3) . compound (A) cannot undergo