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How Do Metal React with Solution of Other Metal Salts

Reactivity of...

Question

Reactivity of zinc is ______ than that of hydrogen.

A

less

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B

more

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C

equal

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D

sometimes more sometimes less

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Solution

The correct option is B more
Reactivity of zinc is more than that of hydrogen as zinc is present above hydrogen in the activity series so it can displace hydrogen and it is more reactive.

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Food cans are coated with tin and not with zinc because

(a) zinc is costlier than tin.

(b) zinc has a higher melting point than tin.

(c) zinc is more reactive than tin.

(d) zinc is less reactive than tin.

Q. Question 4
Food cans are coated with tin and not with zinc because:
a) Zinc is costlier than tin
b) Zinc has a higher melting point than tin
c) Zinc is more reactive than tin
d) Zinc is less reactive than tin

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Q. The mass number of a nucleus is
(a) always less than its atomic number
(b) always more than its atomic number
(c) equal to its atomic number
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Q. Which of the following is the correct conclusion. Also, give the reason?

Observation	I	II	III
Solution after reaction	Colourless	Colourless	Colourless
Metal Deposited	Zn	Cu	Fe

(a) Al is more reactive than Cu and Fe but less reactive than Zn
(b) Al is more reactive than Cu but less reactive than Zn and Fe
(c) Al is more reactive than Zn and Cu but less reactive than Fe
(d) Al is more reactive than Zn, Cu, Fe.

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How Do Metal React with Solution of Other Metal Salts

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