JEE Main 2013 (Offline) | Some Basic Concepts of Chemistry Question 144 | Chemistry

JEE Main 2013 (Offline)

MCQ (Single Correct Answer)

-1

A gaseous hydrocarbon gives upon combustion 0.72 g of water and 3.08 g of CO₂. The empirical formula of the hydrocarbon is

C₂H₄

C₃H₄

C₆H₅

C₇H₈

JEE Main 2013 (Offline)

MCQ (Single Correct Answer)

-1

The molarity of a solution obtained by mixing 750 mL of 0.5 (M) HCl with 250 mL of 2(M) HCl will be:

1.00 M

1. 75 M

0.975 M

0.875 M

AIEEE 2007

MCQ (Single Correct Answer)

-1

In the reaction

2Al(s) + 6HCl(aq) $$\to$$ 2Al³⁺ (aq) + 6Cl^-(aq) + 3H₂(g)

11.2 L H₂(g) at STP is produced for every mole HCl(aq) consumed

6 L HCl(aq) is consumed for every 3L H₂(g) produced

33.6 L H₂(g) is produced regardless of temperature and pressure for every mole that reacts

67.2 H₂(g) at STP is produced for every mole Al that reacts

AIEEE 2007

MCQ (Single Correct Answer)

-1

The density (in g mL^-1) of a 3.60 M sulphuric acid solution that is 29% H₂SO₄ (molar mass = 98 g mol^-1) by mass will be

1.45

1.64

1.88

1.22

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