Question

Fill in the blanks by choosing the appropriate word/words from those given in the brackets :

(zero, first, second, increased, decreased, anode, cathode, active, inactive, potassium cyanide, internal, external, dependent, independent, red, benzoic acid, benzoin, common ion effect, salt hydrolysis, alkali, potassium hydroxide,)

(i) In a galvanic cell, electrons flow from ………. to ……….. through the connecting wires.

(ii) Racemic mixtures are optical …………. because of …………… compensation.

(iii) The half-life period of a …………. order reaction is …………. of the concentration of the reactant.

(iv) Benzaldehyde when treated with an alcoholic solution of ……… forms ………..

(v) The solubility of calcium oxalate is …………. in the presence of ammonium oxalate because of ……… .

Answer 1

(i) In a galvanic cell, electrons flow from anode to cathode through the connecting wires.

(ii) Racemic mixtures are optical inactive because of external compensation.

(iii) The half-life period of a first order reaction is independent of the concentration of the reactant.

(iv) Benzaldehyde, when treated with an alcoholic solution of potassium cyanide, forms benzoin

(v) The solubility of calcium oxalate is decreased in the presence of ammonium oxalate because of the common ion effect.