1
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

A(g) $$\to$$ P(g) + Q(g) + R(g),

Follow first order kinetics with a half-life of 69.3 s at 500$$^\circ$$C. Starting from the gas 'A' an container at 500$$^\circ$$C and at a pressure of 0.4 atm, the total pressure of the system after 230 s will be

A
1.15 atm
B
1.32 atm
C
1.22 atm
D
1.12 atm
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

Which of the following gives paracetamol on acetylation?

A
BITSAT 2020 Chemistry - Chemistry in Everyday Life Question 2 English Option 1
B
BITSAT 2020 Chemistry - Chemistry in Everyday Life Question 2 English Option 2
C
BITSAT 2020 Chemistry - Chemistry in Everyday Life Question 2 English Option 3
D
BITSAT 2020 Chemistry - Chemistry in Everyday Life Question 2 English Option 4
3
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

In qualitative analysis when H2S is passed through an aqueous solution of salt acidified with dilute HCl, a black ppt. is obtained. On boiling the precipitate with dil. HNO3, it forms a solution of blue colour. Addition of excess of aqueous solution of NH3 to this solution gives

A
deep blue ppt. of Cu(OH)2
B
deep blue solution of [Cu(NH3)4]2+
C
deep blue solution of Cu(NO3)2
D
deep blue solution of Cu(OH)2 . Cu(NO3)2
4
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

Titration of 0.1467 g of primary standard Na2C2O4 required 28.85 mL of KMnO4

solution. Calculate the molar concentration of KMnO4 solution.
A
0.01518 M
B
0.001518 M
C
0.15180 M
D
1.5180 M
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