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Atomic Radii and Ionization Energy (Group 1)

Among CaH2, B...

Question

Among $C a H_{2}$ , $B e H_{2}$ , and $B a H_{2}$ , the order of ionic character is:

B e H_{2}

B a H_{2}

C a H_{2}

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C a H_{2}

B e H_{2}

B a H_{2}

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B e H_{2}

C a H_{2}

B a H_{2}

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B a H_{2}

B e H_{2}

C a H_{2}

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Solution

The correct option is C $B e H_{2}$ < $C a H_{2}$ < $B a H_{2}$
For 2nd group hydrides, on moving down the group metallic character of metals increases so the ionic character of metal hydride increases.
Hence option (c) should be the correct option.

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