MCQ
The compound which gives off oxygen on moderate heating is
- ACupric oxide
- ✓Mercuric oxide
- CZinc oxide
- DAluminium oxide
✓
Answer
Correct option: B.
Mercuric oxide
b
It’s Obvious.
It’s Obvious.
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Choose the correct answer from the options given below:
If $5$ moles of an ideal gas expands from $10 \mathrm{~L}$ to a volume of $100 \mathrm{~L}$ at $300 \mathrm{~K}$ under isothermal and reversible condition then work, $w$, is $-x \mathrm{~J}$. The value of $x$ is_____.(Given $\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$ )
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