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

$$10 \mathrm{~g}$$ each of $$\mathrm{CH}_4$$ and $$\mathrm{O}_2$$ are kept in cylinders of same volume under same temperature, give the pressure ratio of two gases

A
$$3: 4$$
B
$$2: 3$$
C
$$1: 4$$
D
$$2: 1$$
3
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

A certain compound gives negative test with ninhydrin and positive test with Benedict's solution, it is

A
an amino acid
B
a monosaccharide
C
a lipid
D
a protein
4
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

Which of the following is cross-linked polymer?

A
Teflon
B
Polythene
C
Nylon
D
Bakelite
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