1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

In one molal solution that contains 0.5 mole of a solute, there is

A
500 mL of solvent
B
500 g of solvent
C
100 mL of solvent
D
1000 g of solvent
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

What mass of 95% pure CaCO3 will be required to neutralise 50 mL of 0.5 M HCl solution according to the following reaction?

CaCO3(s) + 2HCl(aq) $$\to$$ CaCl2(aq) + Co2(g) + 2H2O(l)

[Calculate upto second place of decimal point]

A
1.25 g
B
1.32 g
C
3.65 g
D
9.50 g
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is : [Atomic wt. of C is 12, H is 1]
A
CH4
B
CH
C
CH2
D
CH3
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Which one of the following has maximum number of atoms?
A
1 g of Mg(s) [Atomic mass of Mg = 24]
B
1 g of O2(g) [Atomic mass of O = 24]
C
1 g of Li(s) [Atomic mass of Li = 7]
D
1 g of Ag(s) [Atomic mass of Ag = 108]
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