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Question

The correct statements among (a) to (d) are :
(a) saline hydrides produce H2 gas when reacted with H2O.
(b) reaction of LiAlH4 with BF3 leads to B2H6.
(c) PH3 and CH4 are electron-rich and electron-precise hydrides, respectively.
(d) HF and CH4 are called as molecular hydride

A
(a), (b), (c) and (d)
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B
(a), (c) and (d) only
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C
(c) and (d) only
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D
(a), (b) and (c) only
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Solution

The correct option is A (a), (b), (c) and (d)
(a)
MHSaline/ionic hydride+H2OMOH+H2

(b)
4BF3+3LiAlH42B2H6+3LiF+3AlF3

(c)

Thus, PH3 and CH4 are electron-rich and electron-precise hydrides, respectively.

(d) HF and CH4 are molecular hydride because they are covalent molecules.

Hence, option (a) is the correct answer.

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