1
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct statements from the following.

(A) $$\mathrm{BeSO}_4$$ is soluble in water.

(B) BeO is an amphoteric oxide.

(C) CO can be obtained by heating $$\mathrm{CaCO}_3$$ at $$1070-1270 \mathrm{~K}$$.

A
A, B, C
B
A and B
C
A and C
D
B and C
2
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The pair of elements that form both oxides and nitrides, when burnt in air are

A
$$\mathrm{Na}, \mathrm{Mg}$$
B
$$\mathrm{Na}, \mathrm{Be}$$
C
$$\mathrm{Mg}, \mathrm{Ca}$$
D
$$\mathrm{Be}, \mathrm{Mn}$$
3
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Assertion (A) MgSO$$_4$$ is readily soluble in water.

Reason (R) The greater hydration enthalpy of Mg$$^{2+}$$ ions overcome is lattice enthalpy.

A
A and R both are correct and R is the correct explanation of A .
B
A and R both are correct but R is not the correct explanation of A .
C
A is correct but R is not correct.
D
A is incorrect but R is correct.
4
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify A and B from the following reaction,

$$\mathrm{NaNO}_3 \xrightarrow{\Delta} x A+y B$$

A
$$\mathrm{NaNO}_2, \mathrm{O}_2$$
B
$$\mathrm{Na}_2 \mathrm{O}, \mathrm{NO}_2$$
C
$$\mathrm{Na}_2 \mathrm{O}, \mathrm{NO}$$
D
$$\mathrm{Na}, \mathrm{NO}_2$$
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