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Question

Fill in the blanks by choosing the appropriate word/words from those given in the brackets:
(iodoform, acetaldehyde, positive, greater, acidic, acetone, disaccharide, negative, increases, glucose, decreases, chloroform, polysaccharide, lactose, lesser, basic, cationic hydrolysis, anionic hydrolysis)
(i) Calcium acetate on heating gives _________ which gives _________ on heating with iodine and sodium hydroxide solution.
(ii) On dilution of a solution, its specific conductance __________ while its equivalent conductance ___________.
(iii) Sucrose is a __________ and yields upon hydrolysis, a mixture of ________ and fructose.
(iv) More __________ the standard reduction potential of a substance, the ___________ is its ability to displace hydrogen from acids.
(v) An aqueous solution of CH3COONa is __________ due to _________.

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Solution

(i) Calcium acetate on heating gives acetone which gives iodoform on heating with iodine and sodium hydroxide solution.
(CH3COO)2CaΔ−−−−−−−−Dry distillationCH3C||OCH3+CaCO3
CH3C||OCH3+3NaOINaOH/I2−−−−−ΔCH3C||OONa++CHI3 iodoform+2NaOH
(ii) On dilution of a solution, its specific conductance decreases while its equivalent conductance increases.
(iii) Sucrose is a disaccharide and yields upon hydrolysis, a mixture of glucose and fructose.
(iv) More positive the standard reduction potential of a substance, thegreater is its ability to displace hydrogen from acids.
(v) An aqueous solution of CH3COONa is basic due to anionic hydrolysis .
CH3COO+H2OCH3COOH+OH

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