Conjugate acid of CH3NH2 is : from Chemistry NEET Year 2011 Free

Subject

Chemistry

Class

NEET 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

1.

One mole of which of the following has the highest entropy ?

  • Liquid nitrogen

  • Hydrogen gas

  • Mercury

  • Diamond


2.

Amines behave as :

  • Lewis acid

  • Lewis base

  • aprotic acid

  • neutral compound


3.

1 mole of H2SO4 is mixed with 2 moles of NaOH .The heat evolved will be :

  • 57.3 kJ

  • 2 x 57.3 kJ

  • 57.3/2 kJ

  • Cannot be predicted


4.

One mole. of a perfect gas expands isothermally to ten times of its original volume. The change in entropy is :

  • 0.1 R

  • 2.303 R

  • 10.0 R

  • 100.0 R


Advertisement
5.

For the reaction :

N2 + 3H2  2NH3H = ?

  • E + 2RT

  • E - 2RT

  • E + RT

  • E - RT


6.

100 cc of 0.6 N H2SO4 and 200 cc of 0.3 N HCl were mixed together .The normality of the solution will be :

  • 0.2 N

  • 0.4 N

  • 0.8 N

  • 0.6 N


7.

If the mass defect of 40X is 0.090 u , then binding energy per nucleon is :

(1 u = 931.5 MeV)

  • 9.315 MeV

  • 931.5 MeV

  • 83.0 MeV

  • 8.38 MeV


8.

50 mL of 0.1 M HCl and 50 mL of 0.2 M NaOH are mixed .The pH of the resulting solution is :

  • 1.30

  • 4.2

  • 12.70

  • 11.70


Advertisement
9.

27Co60 is radioactive because :

  • its atomic number is high

  • it has high pn ratio

  • it has high np ratio

  • None of the above


Advertisement

10.

Conjugate acid of CH3NH2 is :

  • CH3OH

  • CH3NH3+

  • CH2NH2+

  • CH3N-H


B.

CH3NH3+

Conjugate acid is obtained , when a base accepts a proton .

CH3NH2base + H+proton CH3NH3+conjugate acid


Advertisement
Advertisement