1
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

Assertion (A) K, Rb and Cs form superoxides.

Reason (R) The stability of superoxides increases from K to Cs due to decrease in lattice energy.

A
Both A and R are true and R is a correct explanation of A.
B
Both A and R are true but R is not a correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
2
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

When borax is dissolved in water, it gives an alkaline solution. The alkaline solution consists the following products

A
$$\mathrm{NaOH}$$ and $$\mathrm{BH}_3$$
B
$$\mathrm{NaOH}$$ and $$\mathrm{H}_3 \mathrm{BO}_3$$
C
$$\mathrm{NaHCO}_3$$ and $$\mathrm{H}_3 \mathrm{BO}_3$$
D
$$\mathrm{Na}_2 \mathrm{CO}_3$$ and $$\mathrm{H}_3 \mathrm{BO}_3$$
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