Question

1. Multiple Choice Questions. Each question contains 1 marks each.
a. Which of the following metals fails to evolve hydrogen with dilute HCL?
i. Zinc
ii. Iron
iii. Aluminium
b. Which of the following is an example of displacement reaction?
i. 2KCIO3 → 2KCl + 302
ii. 2H2 + 02 → 2H2O
iii. Zn + 2HCl → ZnCl2 + H2
C. In the reaction 2PbO + C2Pb + CO2
i. Lead is getting reduced
ii. Carbon dioxide is oxidized.
iii. Carbon is getting oxidized.
iv. Both (i) and (ii)
1
Note Book
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Answer 1

Answer:

a.Iron

b.Zn + 2HCL---- ZnCl2 + H2

c.half question...product is missing