GATE-ES SERIES Chemistry
Inorganic Chemistry
2 previous year questions.
Volume: 2 Ques
Yield: Medium
High-Yield Trend
2
2021 Chapter Questions 2 MCQs
01
PYQ 2021
medium
chemistry ID: gate-es-
A 200 mL sample of water has an initial pH = 9. In order to determine alkalinity, the sample was titrated using 0.02 N acid to an end point of pH = 4.5. In the titration, 25 mL of 0.02 N acid was required. What is the total alkalinity of the sample in âmg/L as NaHCO â? [Atomic weight (g/mol): Ca = 40, Na = 23, H = 1, C = 12, S = 32, and O = 16]
1
20
2
125
3
210
4
305
02
PYQ 2021
medium
chemistry ID: gate-es-
What is the pH of a water sample having concentration of 10 mg/L? The atomic weight of H is 1 g/mol.
1
2
2
4
3
6
4
8