Rutherford s alpha (α) particle scattering experiment resul

Subject

Science

Class

TET Class 12

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

Download the PDF Sample Papers Free for off line practice and view the Solutions online.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

1.

Which of the following has maximum number of atoms?

  • 16 g N2

  • 16 g of CO2

  • 16 g of CH4

  • 16 g of O2


2.

In laboratory, ethylene and acetylene can be distinguished by

  • Br2/H2O

  • KMnO4/OH/H2O

  • Tollens' reagent

  • Fehling solution


3.

In which of the following compounds, the oxidation number of oxygen is +2?

  • OF2

  • Na2O

  • NaO2

  • NaO3


4.

The monomer of natural rubber is

  • Neoprene

  • Isoprene

  • Terylene

  • Orlon


Advertisement
5.

Which compound has the highest boiling point?

  • n-pentane

  • Isopentane

  • Neopentane

  • Isobutane


6.

The number of π-electrons in the molecules of aromatic compound is


  • 4n

  • 4n+1

  • 4n+2

  • 2n+4


Advertisement

7.

Rutherford's alpha (α) particle scattering experiment resulted into the discovery of

  • proton

  • nucleus in the atom

  • electron

  • atomic mass


B.

nucleus in the atom

Physicist Ernest Rutherford established the nuclear theory of the atom with his gold-foil experiment. When he shot a beam of alpha particles at a sheet of gold foil, a few of the particles were deflected. He concluded that a tiny, dense nucleus was causing the deflections.


Advertisement
8.

Which one of the following is not a heterogeneous mixture?

  • Air

  • Milk

  • Smoke

  • Jelly


Advertisement
9.

Silk farming is known as

  • Epiculture

  • Pisciculture

  • Sericulture

  • Agriculture


10.

All organisms belonging to the kingdom Protista are

  • unicellular and eukaryotic

  • unicellular and prokaryotic

  • multicellular and prokaryotic

  • multicellular and eukaryotic


Advertisement