1
TG EAPCET 2024 (Online) 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Observe the following reactions (not balanced)

$$ \begin{aligned} & \mathrm{BF}_3+\mathrm{LiAlH}_4 \xrightarrow{\left(\mathrm{C}_2 \mathrm{H}_5\right)_2 \mathrm{O}} X+\mathrm{LiF}+\mathrm{AlF}_3{ }^{-} \\ & X+\mathrm{NaH} \longrightarrow Y \end{aligned} $$

The incorrect statement about $Y$ is

A
it is a good oxidising agent.
B
it is a good reducing agent.
C
oxidation state of hydrogen in it is -1 .
D
oxidation of it with iodine gives diborane.
2
TG EAPCET 2024 (Online) 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$\mathbf{Assertion (A)}$ Silicones are used for water proofing of fabrics.

$\mathbf{Reason (R)}$ The repeating unit in silicones is

TG EAPCET 2024 (Online) 10th May Morning Shift Chemistry - Polymers Question 1 English

The correct answer is

A
Both (A) and (R) are correct, but (R) is not the correct explanation of (A).
B
Both (A) and (R) are correct and ( B ) is the correct explanation of (A).
C
(A) is not correct but $(R)$ is correct
D
$(A)$ is correct but $(R)$ is not correct.
3
TG EAPCET 2024 (Online) 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Acrolein $(X)$ is one of the chemicals formed when $\mathrm{O}_3$ and $\mathrm{NO}_2$ react with unburnt hydrocarbons present in the polluted air. The structure of ' $X$ ' is
A
$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}_2$
B
$\mathrm{CH}_2=\mathrm{CH}-\mathrm{CHO}$
C
$\mathrm{CH}_2=\mathrm{CH}-\mathrm{CN}$
D
$\mathrm{CH}_3 \mathrm{CO}(\mathrm{OO}) \mathrm{NO}_2$
4
TG EAPCET 2024 (Online) 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
An organic compound containing phosphorous on oxidation with $\mathrm{Na}_2 \mathrm{O}_2$ gives a compound ' $X$ '. This ' $X$ ' when boiled with $\mathrm{HNO}_3$ followed by treatment with a reagent gives yellow precipitate $Y . X$ and $Y$ respectively are
A
$\mathrm{Na}_3 \mathrm{PO}_4,\left(\mathrm{NH}_4\right)_2 \mathrm{MoO}_3$
B
$\mathrm{Na}_3 \mathrm{PO}_4,\left(\mathrm{NH}_4\right)_2 \mathrm{MoO}_4$
C
$\mathrm{H}_3 \mathrm{PO}_4,\left(\mathrm{NH}_4\right)_2 \mathrm{MoO}_4$
D
$\mathrm{Na}_3 \mathrm{PO}_4,\left(\mathrm{NH}_4\right)_3 \mathrm{PO}_4 \cdot 12 \mathrm{MoO}_3$
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