Metals which are placed above hydrogen in the reactivity series are more reactive than $H_{2}$ and they can :

not displace

H_{2}

from dilute acids

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displace hydrogen from dilute acids

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not react with water easily

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none of these

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Solution

The correct option is B displace hydrogen from dilute acids
Metals present on top of the reactivity series above the hydrogen can displace the metals present below them from their salt solution.

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Similar questions

Q. Consider the given statements and choose the correct option.

Statement-I : Metals that are placed above hydrogen can displace hydrogen from water and dilute acids.

Statement–II : Oxides of metals like K, Na and Ca cannot be reduced by

H_{2}, C o r C O

Q. Metals above hydrogen in the activity series can displace hydrogen from dilute acids.

Electrochemical series is a series of elements arranged in increasing order of their reduction potential and $E_{H^{+} / H_{2}}^{0} = 0$ . The metals above $H_{2}$ have – ve reduction potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than $H_{2}$ . Reduction potential of metal depends upon
(i) sublimation energy (ii) ionization energy and (iii) hydration energy of ions.

Which of the following is best reducing agent?

Q. Assertion :Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid, whereas copper does not. Reason: Zinc is above hydrogen in reactivity series.

Choose terms from the options given in brackets to complete these sentences.

(a) When CuO reacts with hydrogen, .............. is reduced and ............... is oxidized to .............. . $(C u O, H_{2}, C u, H_{2} O)$

(b) Hydrogen is ................ soluble in water. (Sparingly, highly, moderately)

(iron, magnesium, aluminium, sodium, calcium)

(d) Sodium .......... reacts smootly with cold water. (metal, amalgam, in the molten state)

(e) A metal ............. hydrogen in the activity series gives hydrogen with ............... acid or acid.

(above, below, dilute hydrochloric, concentrated hydrochloric, dilute sulphuric).

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Metals which are placed above hydrogen in the reactivity series are more reactive than H2 and they can :

The correct option is B displace hydrogen from dilute acidsMetals present on top of the reactivity series above the hydrogen can displace the metals present below them from their salt solution.

Metals which are placed above hydrogen in the reactivity series are more reactive than $H_{2}$ and they can :

The correct option is B displace hydrogen from dilute acids
Metals present on top of the reactivity series above the hydrogen can displace the metals present below them from their salt solution.