1
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

Which of the following is added to remove permanent hardness of water?

A
$$\mathrm{Cl}_2$$
B
$$\mathrm{Na}_2 \mathrm{CO}_3$$
C
$$\mathrm{Ca}(\mathrm{OCl}) \mathrm{Cl}$$
D
$$\mathrm{K}_2 \mathrm{CO}_3$$
2
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

Which of the following acts as interstitial hydride?

A
$$\mathrm{NH}_3$$
B
$$\mathrm{CH}_4$$
C
$$\mathrm{ZnH}_2$$
D
$$\mathrm{H}_2 \mathrm{O}$$
3
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

Which one of the following is correct order of given isotopes?

I. T2 > D2 > P2 (order of boiling point)

II. T2 > D2 > P2 (order of bond energy)

III. T2 = D2 = P2 (order of bond length)

IV. T2 < D2 < P2 (order of reactivity with Cl2)

A
I and II
B
III and IV
C
II, III and IV
D
All of these
4
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

ortho and para form of hydrogen have

A
different physical and chemical properties
B
identical physical properties but different chemical properties
C
identical chemical properties but different physical properties
D
identical chemical and physical properties
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