1
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Which of the allotropic forms of carbon is aromatic in nature?
A
Diamond
B
Graphite
C
Buckminster fullerene
D
Coke
2
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$\mathrm{P}_2 \mathrm{O}_3+\mathrm{H}_2 \mathrm{O} \rightarrow X$, Red $\mathrm{P}_4+$ alkali $\rightarrow Y$

$X, Y$ are oxoacids of phosphorous. The number of $\mathrm{P}-\mathrm{OH}$ bonds in $X, Y$ respectively is

$$ \mathrm{P}_2 \mathrm{O}_3+\mathrm{H}_2 \mathrm{O} \rightarrow X $$

A
1,4
B
4, 1
C
2,4
D
1,1
3
AP EAPCET 2024 - 21th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A Lewis acid ' $X$ ' reacts with $\mathrm{LiAlH}_4$ in ether medium to give a highly toxic gas. ${ }^{\prime} Y^{\prime}$, ' $Y$ ' when heated with $\mathrm{NH}_3$ gives a compound known as inorganic benzene. ' $Y^{\prime}$ burns in oxygen and gives $\mathrm{H}_2 \mathrm{O}$ and ' $Z$ ', ' $Z$ ' is
A
basic oxide
B
acidic oxide
C
amphoteric acid
D
neutral oxide
4
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following are correct?

i. Basic structural unit of silicates is $-R_2 \mathrm{SiO}-$

ii. Silicones are biocompatible

iii. Producer gas contains CO and $\mathrm{N}_2$

The correct option is

A
i, ii, iii
B
ii, iii only
C
i, iii only
D
i, ii only
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