1
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
When chlorine reacts with hot and conc. NaOH . The products formed are
A
$\mathrm{NaCl}, \mathrm{NaClO}_3, \mathrm{H}_2 \mathrm{O}$
B
$\mathrm{NaCl} \cdot \mathrm{NaOCl} \cdot \mathrm{H}_2 \mathrm{O}$
C
NaCl, H2, Only
D
$\mathrm{NaOCl}, \mathrm{H}_2 \mathrm{O}$
2
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the $$P$$ and $$Q$$ of the following reaction

$$P+Q \longrightarrow\left[B(O H)_4\right]^{-}+\mathrm{H}_3 \mathrm{O}^{+}$$

A
$$P=\mathrm{H}_3 \mathrm{BO}_3 ; Q=3 \mathrm{H}_2 \mathrm{O}$$
B
$$P=\mathrm{H}_3 \mathrm{BO}_3 ; Q=2 \mathrm{H}_2 \mathrm{O}$$
C
$$P=\mathrm{HBO}_2 ; Q=2 \mathrm{H}_2 \mathrm{O}$$
D
$$P=2 \mathrm{H}_3 \mathrm{BO}_3 ; Q=\mathrm{H}_2 \mathrm{O}$$
3
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Among $$\mathrm{P}_4, \mathrm{~S}_8$$ and $$\mathrm{N}_2$$ the elements which undergo disproportionation when heated with NaOH solution.

A
$$\mathrm{P}_4, \mathrm{~S}_8$$ only
B
$$\mathrm{N}_2, \mathrm{~S}_8$$ only
C
$$\mathrm{N}_2, \mathrm{P}_4$$ only
D
$$\mathrm{P_4, N_2, S_8}$$
4
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct statements about the anomalous behaviour of boron.

I. Boron trihalides can form dimeric structures.

II. Boron shows +1 as stable oxidation state.

III. Maximum covalency of boron is four.

IV. Boron does not form $$\mathrm{BF}_6^{6-}$$ ion.

A
I, II only
B
II, III only
C
III, IV only
D
I, IV only
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