JEE Chemistry Solved Question Paper 2017 | Previous Year Papers | Zigya

Subject

Chemistry

Class

JEE Class 12

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement
1.

The work done during combustion of 9 × 10-2 kg of ethane, C2H6 (g) at 300 K is (Given R = 8.314 J deg-1 mol-1, atomic mass C = 12, H= 1).

  • 6.236 kJ

  • -6.236 kJ

  • 18.71 kJ

  • -18.71 kJ


2.

The molality of solution containing 15.20 g of urea, (molar mass = 60) dissolved in 150 g of water is

  • 1.689 mol kg-1

  • 0.1689 mol kg-1

  • 0.5922 mo kg-1

  • 0.2533 mol kg-1


3.

Identify the weakest oxidising agent among the following.

  • Li+

  • Na+

  • Cd+

  • I2


4.

Calculate the work done during compression of 2 mol of an ideal gas from a volume of 1 m3 to 10 dm3 300K against a pressure of 100 KPa

  • -99 kJ

  • +99 kJ

  • +22.98 kJ

  • -22.98 kJ


Advertisement
5.

Which element among the following does form pπ - pπ multiple bonds?

  • Arsenic

  • Nitrogen

  • Phosphorus

  • Antimony


6.

Which of the following statement(s) is/are incorrect for pair of elements Zr-Hf?

  • Both possess same number of valence electrons

  • Both have identical sizes

  • Both have almost identical radii

  • Both of these belong to same period of periodic table


7.

Solubility of which among the following solids in water changes slightly with temperature?

  • KNO3

  • NaNO3

  • KBr

  • NaBr


8.

The colour and magnetic nature of manganate ion (MnO42-) is

  • green, paramagnetic

  • purple, diamagnetic

  • green, diamagnetic

  • purple, paramagnetic


Advertisement
9.

Which among the following equation represents Arrhenius equation?

  • k = AeEa/ RT

  • k = A . eRT/ Ea

  • k = AeEa/ RT

  • k = AeRT/ Ea


10.

The first law of thermodynamics for isothermal process is

  • q = -W

  • U = W

  • U = qv

  • U = -qv


Advertisement