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

Choose the correct chemical reaction among the following:

A
CaCN2 + H2O $$\to$$ Ca(OH)2 + C2H2 + NH3
B
2NH3 + CaSO4 + CO2 + H2O $$\to$$ CaCN2 + (NH4)2SO4
C
CaCl2 + Na2SO4 $$\to$$ CaSO4 + 2NaCl
D
CaC2 + H2O $$\to$$ Ca(OH)2 + 2NaCl
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

Which of the following reactions represents disproportionation?

A
CrO5 $$\to$$ Cr3+ + O2
B
IO$$_3^ - $$ + I$$-$$ + H+ $$\to$$ I2
C
CrO2Cl2 + NaOH $$\to$$ Na2CrO4 + NaCl + H2O
D
Na2S2O3 + H2SO4 $$\to$$ Na2SO4 + SO2 + S8 + H2O
3
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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