1
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The macromolecular colloids of the following are

I. Starch solution

II. Sulphur sol

III. Synthetic detergent

IV. Synthetic rubber

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

Assertion (A) Animal skins are colloidal in nature.

Reason (R) Animal skin has positively charged particles.

A
Both A and R are correct and R is the correct explanation of A.
B
Both A and R are correct and R is not the correct explanation of A.
C
A is correct but R is incorrect.
D
A is incorrect but R is correct.
3
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the reaction of phosphorus with conc. $$\mathrm{HNO}_3$$, the oxidised and reduced products respectively are

A
$$\mathrm{H}_3 \mathrm{PO}_4, \mathrm{NO}_2$$
B
$$\mathrm{H}_3 \mathrm{PO}_2, \mathrm{NO}$$
C
$$\mathrm{H}_3 \mathrm{PO}_3, \mathrm{~N}_2 \mathrm{O}$$
D
$$\mathrm{HPO}_3, \mathrm{NO}$$
4
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is formed when $$\mathrm{SO}_3$$ is absorbed by concentrated $$\mathrm{H}_2 \mathrm{SO}_4$$ ?

A
$$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_8$$
B
$$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_3$$
C
$$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_7$$
D
$$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_5$$
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