Which one of the following species has the plane triangular sha

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

11.

1.0 g of magnesium is burnt with 0.56 g of O2 in a closed vessel. Which reactant is left in excess and how much?

  • Mg, 0.16 g

  • O2, 0.16 g

  • Mg, 0.44 g

  • Mg, 0.44 g

2123 Views

12.

The pair of compounds that can exist together is 

  • FeCl3.SnCl2

  • HgCl2,SnCl2

  • FeCl2,SnCl2

  • FeCl2,SnCl2

1542 Views

13.

Be2+ is isoelectronic with which of the following ions?

  • H+

  • Li+

  • Na+

  • Na+

2186 Views

14.

Which of the following molecules has the maximum dipole moment?

  • CO2

  • CH4

  • NH3

  • NH3

1358 Views

Advertisement
Advertisement

15.

Which one of the following species has the plane triangular shape?

  • N3

  • NO3-

  • NO2-

  • NO2-


B.

NO3-

Species with sp2 hybridization are plane triangular in shape. Among the given species NO3- si sp2 hybridised with no lone pair of electrons on the central atom, N. whereas, N3, NO2- and CO2 are sp hybridised with a linear shape.

1207 Views

Advertisement
16.

Magnetic moment 2.83 BM is given by which of the following ions?

(At. no.: Ti =22; Cr=24; Mn=25; Ni=28)

  • Ti3+

  • Ni2+

  • Cr3+

  • Cr3+

952 Views

17.

In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 g of sample neutralised 10 mL of 1 M H2SO4.The percentage of nitrogen in the soil is

  • 37.33

  • 45.33

  • 35.33

  • 35.33

1861 Views

18.

Which of the following organic compounds has same hybridization as its combustion product -(CO)2?

  • Ethane

  • Ethyne

  • Ethene

  • Ethene

950 Views

Advertisement
19.

(I)H2O2 +O3 --> H2O +2O2
(II) H2O2 +Ag2O +--> 2Ag +H2O +O2
Role of hydrogen peroxide in the above reaction is respectively

  • oxidising in (I) and reducing (II)

  • reducing (I) and oxidizing in (II)

  • reducing in (I) and (II)

  • reducing in (I) and (II)

1744 Views

20.

The reaction of aqueous KMnO4 with H2O2 in acidic conditions gives.

  • Mn4+ and O2

  • Mn2+ and O2

  • Mn2+ and O3

  • Mn2+ and O3

2349 Views

Advertisement