Question:

Which of the following statement(s) is/are correct?
a) NaH is non-volatile hydride
b) MgH$_2$ is polymeric hydride
c) NH$_3$ is an electron precise hydride
d) H$_2$O is an electron rich hydride

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Polymeric hydrides like MgH2 have extended structures due to the covalent bonding between molecules, making them more stable.
Updated On: May 13, 2025
  • a, b \& d only
  • a, b \& c only
  • a, b \& c \& d
  • c \& d only
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The Correct Option is A

Solution and Explanation

NaH is non-volatile as it is ionic, MgH$_2$ is polymeric in nature, NH3 is an electron precise hydride, and H$_2$O is considered an electron-rich hydride because of its lone pair. So, a, b, and d are correct.
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