1
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
2
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
3
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
' $X$ ' on hydrolysis gives two products. One of them is solid. What is ' $X$ '?
A
$\mathrm{P}_4 \mathrm{O}_{10}$
B
$\mathrm{F}_2$
C
$\mathrm{SiCl}_4$
D
$\mathrm{N}^{3-}$
4
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following reactions give phosphine?

i. Reaction of calcium phosphide with water

ii. Heating white phosphorous with concentrated NaOH solution in inert atmosphere

iii. Heating red phosphorous with alkali

A
i, ii, only
B
$\mathrm{i}, \mathrm{ii}$, iii
C
ii, iii only
D
i, iii only
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