Structure of Atom Class 11 MCQ

Structure of Atom MCQ

These are some of the random multiple question answers from Structure of Atom... 

1. Who discovered anode rays :

 Goldstein
 Rutherford
 J. Stanley
 J. J. Thomson

2. Neutron was discovered by :

 Rutherford
 Chadwick
 Austin

 Langmuir

3. Radioactive isotope of hydrogen has ________ number of neutrons :

 0

 1

 2

 3

4. Cathode rays are deflected by :

 A magnetic field only
 An electric field only

 By Both
 By None

5. Cathode rays have :

 Mass Only
 Charge Only
 Mass and Charge Both
 No Charge and No Mass

6. Mass of atom is mainly constituted by :

 Neutrons and neutrino
 Neutrons and electrons

 Neutrons and protons
 Protons and electrons

7. Ratio of mass of proton and electron is :

 1.8
 1.8x10³

 Infinite
 None of these

8. Atomic number of an element is equal to the number of  :

 Proton

 Electron

 Neutron

 Electron and Proton

9. Size of nucleus is :

 10^-8 m

 10^-10 m

 10^-12 m

10^-15 m

10. Who modifies Bohr’s model :

 Dalton
 Pauli
 Rutherford
 Sommerfeld

Also read Chemistry Notes of this chapter at below link...
11 Class Chapter 2- Structure of Atom

Some Basic Concepts of Chemistry Class 11 MCQ

Some Basic Concepts of Chemistry Class 11 MCQ

These are some of the random multiple question answers from Some Basic Concept of Chemistry...

1. If a matter has definite volume and definite shape, then it is :

Solid
Liquid
Gas
All of the Above

2. Mole is SI unit of :

Current
Temperature
Amount of Substance

Luminous intensity

3. A measured temperature is 100 ⁰F on Fahrenheit scale, then what is this reading be on Celsius scale :

11.2 ⁰C

78 ⁰C

102.7 ⁰C

37.8 ⁰C

4. What amount of H­₂O produced by combustion of 32 g of CH₄ :

36 g
18 g
72 g
90 g

5. How many moles of CH₄ is needed to get 44 gram CO₂ after combustion :

0.5 mol of Methane
1 mol of Methane
2 mol of Methane
4 mol of Methane

6. Calculate the mass per cent of the solute, when a solution is prepared by adding 4 gram of substance A to 36 gram of water :

10%
20%
30%
40%

7. What is molarity of  NaOH in the Solution, that is prepared by adding 2 gram NaOH in water to get 500 mL of the solution :

0.4 M
1.0 M
0.1 M
4.0 M

8. A measured temperature is 44 ⁰C on Celsius scale, then what is this reading be on Fahrenheit scale :

111.2 ⁰F

88.8 ⁰F

32 ⁰F

199.8 ⁰F

9. Dalton in 1803, gives :

Law of conservation of mass

Law of definite proportion

Law of multiple proportion

Gay Lussac’s law of gaseous volume

10. The prefix 10^-15 is :

Atto
Femto
Peta
Tera

View below video on Some Basic Concept of Chemistry Quiz

Also read Chemistry Notes of this chapter at below link...

11 Class Chapter 1- Some Basic Concept of Chemistry Notes