QUESTION PAPER
2022 BOARD EXAM
CBSE CLASS 12-PCB CHEMISTRY Board Paper 2022 — Set 3
2022
CHEMISTRY
CLASS 12-PCB
CBSE EXAMINATION PAPER-2022
CHEMISTRY
(Solved)
General Instructions :
Read the following instructions carefully and follow them :
- This question paper contains 5 questions. All questions are compulsory.
- This question paper is divided into 2 sections.
- Section A – questions number 1 to 1 are case based questions
- Section B – questions number 2 to 5 are long answer
- There is no overall choice given in the question paper. However, an internal choice has been provided in few questions.
- Use of calculator is NOT allowed.
Section A
Section B
Calculate Δr,Gº and log Ke for the following cell:
Ni(s) +2 Ag+(aq) → Ni²+(aq) + 2Ag(s)
Given that E°cell = 1.05V, IF = 96,500 Cmol-1
Calculate the e.m.f. of the following cell at 298K:
Fe(s) Fe2+ (0.001 M) || H+ (0.01M) | H2(g) (1 bar) | Pt(s)
Given that E°cell = +0.44 V
[log 2=0.3010 log 3 =0.4771 log 10=1]
Define transition metals. Why Zn, Cd and Hg are not called transition metals? How is the variability in oxidation states of transition metals different from that of p-block elements?
Write the main product in the following reactions :
Other Years — CHEMISTRY