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STD 12 - p -Block elements - ll — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - p -Block elements - ll4 Marks
MCQ
Assertion : The $S-S-S$ bond angle in $S_8$ molecule is $105^o$.

Reason : $S_8$ has a $V-$ shape.

  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • ✓
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: D.
If both the Assertion and Reason are incorrect.
d
$4\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2+4 \mathrm{H}_2 \mathrm{O} \xrightarrow{75 \%}\left(\mathrm{CH}_3\right)_8 \mathrm{Si}_4 \mathrm{O}_4+8 \mathrm{HCl}$

$\text { (X) }$

$\mathrm{w}=516 \mathrm{~g}$

$\underset{\text { (moles) }}{\mathrm{n}}=\frac{516}{129}$

$=4$

$\% \text { yield }=75$

The weight of $X($ in gram $)=296 \times \frac{75}{100}=222 \mathrm{~g}$

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