The oxides of active metals like potassium, sodium, aluminium, calcium and magnesium do not get reduced by hydrogen into their corresponding metals.

True

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False

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Solution

The correct option is A True
In metal reactivity series, the metals are arranged in a series in the descending order of their reactivity. In the metal reactivity series the reactive metal are placed above hydrogen, which means that metals like sodium, potassium, aluminium, calcium and magnesium are more reactive than hydrogen. Hence the oxides of these metals do not get reduced by hydrogen.

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Similar questions

Arrange the metals in the decreasing order of their abundance in the earth's crust. [1 MARK]
Iron, potassium, calcium, aluminium, sodium, magnesium

The metals which can produce amphoteric oxides are:
(a) Sodium and aluminium (b) zinc and potassium (c) calcium and sodium (d) aluminium and zinc

The figure represents the reactivity of metals then which of the following are correct?

(i) Sodium is more reactive than magnesium.

(ii) Magnesium ad aluminium metals displace lead.

(iii) Magnesium and aluminium metals displace calcium.

(iv) Iron and tin metals can displace magnesium.

(v) Most reactive metal is sodium.

(vi) Gold is least reactive.

(vii) Calcium and zinc metals displace iron.

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