Which of the following hydrides is expected to have the highest melting point? A)H₂S B)HF C)H₂Se D)MgH₂

Name: Which of the following hydrides is expected to have the highest melting point? A)H 2 S B)HF C)H 2 Se D)MgH 2
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MgHSB12 is an ionic compound with a high lattice energy due to the strong electrostatic attraction between the positively charged magnesium ion and the negatively charged (BH4)- ion. This gives it a higher melting point compared to the other covalent hydrides.

Which of the Following Hydrides Is Expected to Have the Highest