Which of the following statement(s) is/are co | vedclass

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(A) $NaH$ is an ionic (saline) hydride,which is non-volatile and crystalline.Thus,statement $(A)$ is correct.$MgH_2$ is a polymeric hydride,as shown b

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$A, B$ & $D$ only

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(A) $NaH$ is an ionic (saline) hydride,which is non-volatile and crystalline.Thus,statement $(A)$ is correct.$MgH_2$ is a polymeric hydride,as shown by its structure containing bridging hydrogen atoms.Thus,statement $(B)$ is correct.$NH_3$ has a lone pair on the $N$-atom,making it an electron-rich hydride,not electron-precise.Thus,statement $(C)$ is incorrect.$H_2O$ has two lone pairs on the $O$-atom,making it an electron-rich hydride.Thus,statement $(D)$ is correct.Therefore,statements $(A)$,$(B)$,and $(D)$ are correct.

Which of the following statement$(s)$ is/are correct:
$A$. $NaH$ is a non-volatile hydride
$B$. $MgH_2$ is a polymeric hydride
$C$. $NH_3$ is an electron-precise hydride
$D$. $H_2O$ is an electron-rich hydride

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Which of the following statement$(s)$ is/are correct:$A$. $NaH$ is a non-volatile hydride$B$. $MgH_2$ is a polymeric hydride$C$. $NH_3$ is an electron-precise hydride$D$. $H_2O$ is an electron-rich hydride