ICH 191 Past Question and Answer

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ICH 191 PAST QUESTION PG 1

QUESTION NUMBER 1

The following salts are soluble in water except?

A. NH4NO2

B. (CH3COO)2Pb

C. AgCl

D. NaCl



ANSWER: C

QUESTION NUMBER 2

Which of the following gas turns red litimus paper blue

A. NH3(g)

B. CO(g)

C. CL2(g)

D. H2(g)



ANSWER: A

QUESTION NUMBER 3

Anions are —–

A. Postively charged

B. Metalic radicals

C. Red

D. Yellow



ANSWER: B

QUESTION NUMBER 4

Phenolpthalein is always ——

A. Pink

B. Colourless

C. Red

D. Yellow



ANSWER: B

QUESTION NUMBER 5

Which of the following salts forms acidic solutions of hydrolysis

A. Na2CO3

B. HCOONa

C. Na2S

D. Nh4Cl



ANSWER: D

QUESTION NUMBER 6

In comfirmaentry test for acid radicals mineral acid is added to ——

A. Make the medium more acdic

B. Remove Metalic Radicals

C. Chnage the PH of the test reagent

D. Remove the interfering ions if present



ANSWER: A

QUESTION NUMBER 7

the solubility of hydroxie depends on —

A. PH

B. Solvent

C. Solution

D. Apparatus



ANSWER: A

QUESTION NUMBER 8

Which of these ions gives a dark or deep blue precipitate with potassium hexacyanoferate (2) ions?

A. CU2+

B. Fe3+

C. Fe2+

D. Pb2+




ANSWER: A

QUESTION NUMBER 9

The Mole ratio of a titration reaction involving Sodium Hydroxide and sulphric acid is ———

A. 1:1

B. 1:2

C. 2:1

D. 2:3



ANSWER: A