Chemistry Notes for Class-9 Chapter-2

Structure of Atoms:

If you are looking for Chemistry Notes for Class 9 Chapter-2 then you are on right place, and have found the your required result. on this post you can find the all type Solution for chemistry class 9 problems. so read this post and take benefits for your studies and share with your Friends.

Here are important MCQs for Chemistry Notes for Class 9, chapter 2

Try and Practice/ Play this MCQs Series again and again to get the grip on this MCQs Chapter-02 of Chemistry,9th Class, Structure of Atoms.

Best of Luck

0%

7 votes, 3.4 avg

316

Start Your Test Now

Time is over

Thanks for taking Quiz, Click Finish Button to see your Result

---

Chemistry Ch#02, 9th Class

Here MCQs for your Revision

For Good Revision & Grip on Concept, You Should take the MCQs and Revise it again and again

Good Luck. . . .  (:

Welcome

Please provide information & fill-up this form

1 / 41

Which isotope is used for diagnosis of goiter?

lodine-131

St-90

Cobalt-60

P-32

2 / 41

How many sub shells are there in first energy level or k shell?

04

01

03

02

3 / 41

Canal Rays were discovered by_________

Dalton

Thomson

Crooks

Goldstein

4 / 41

⁹₄Be + ⁴₂He ----> ¹²₆C+ ?

1 0 P

-1 0 e

4 2 He

1 0 n

5 / 41

The concept of orbit was used by____________

Planck

Bohr

Rutherford

J.J. Thomson

6 / 41

Who described the concept of line spectrum in his atomic model?

Bohr

Chadwick

Both a & b

Rutherford

7 / 41

John Dalton put forward his atomic theory in the beginning of________

18th Century

19th Century

16th Century

17th Century

8 / 41

Neil Bohr won the noble prize in________

1926

1918

1914

1922

9 / 41

In 1912 Neil Bohr joined for post-doctoral research with _________

Goldstein

Chadwick

Newton

Rutherford

10 / 41

Who discovered the proton?

Gold stein

Rutherford

Neil Bohr

J.J. Thomson

11 / 41

Symbol for Deuterium is ________

1 0 H

3 1 H

1 1 H

2 1 H

12 / 41

Quantum means_________

Variable energy

Minimum energy

High energy

Fixed energy

13 / 41

¹³C and ¹⁴C are both present in nature_______

0.9 %

0.1 %

1.1 %

1.5 %

14 / 41

Neil Bohr presented his model in_______

1913

1914

1926

1918

15 / 41

Which one of the following is the most penetrating?

Neutrons

Electrons

Alpha particles

Protons

16 / 41

Who performed first experiment to split atom?

Newton

Bohr

Soddy

Rutherford

17 / 41

Plum pudding theory was put forward by_________

Soddy

Crooks

Goldstein

Thomson

18 / 41

The name atom was derived from the Latin word “Atomos”, which meaning _________

Stable

Indivisible

Reactive

Divisible

19 / 41

According to Rutherford’s atomic theory atom should produce_________

Continuous Spectrum

Both A & B

Line Spectrum

None of These

20 / 41

Sir William Crooks performed experiments in a discharge tube at low pressure in_________

1893

1895

1897

1896

21 / 41

Electronic configuration of Boron is______

1s2, 2s1

1s2, 2s2, 2p1

1s2, 2p1

1s2, 2s2

22 / 41

Which radio isotope is used for the diagnosis of tumor in the body?

Strontium-90

Phosphorous-30

Cobalt-60

Iodine-131

23 / 41

Chadwick discovered neutrons in_____

1932

1925

1930

1934

24 / 41

Rutherford won noble prize in __________

1906

1908

1910

1902

25 / 41

When U-235 breaks up, it produces_________

Electrons

Nothing

Protons

Neutrons

26 / 41

How many electrons can be accommodated in N-shell?

8

18

32

2

27 / 41

Rutherford used a gold foil in his experiment, which has a thickness of___________

0.002cm

0.001cm

0.00004cm

0.0001cm

28 / 41

The p subshell has_________

Two Orbitals

Three Orbitals

Four Orbitals

One Orbital

29 / 41

⁹₄Be + ⁴₂He ----> ¹²₆C+ ?

-1 0 e

4 2 He

1 0 n

1 0 P

30 / 41

How many times he mass of a proton is more than an electron?

1820

1840

1830

1850

31 / 41

How many electrons can be accommodated in L-shell?

2

18

8

32

32 / 41

The value of Planck’s constant is_______

6.63x10(-34) Js

6.62x10(-24) Js

6.62x10(-19) Js

6.62x10(-12)Js

33 / 41

Which of the following results in the discovery of proton?

X-Rays

Canal Rays

Cathode Rays

Alpha Rays

34 / 41

The percentage of pure 238/92U is found in nature_______

97 %

100 %

99 %

98 %

35 / 41

In 1897, who found electrons in atom?

Goldstein

William Crooks

Dalton

J.J. Thomson

36 / 41

How many electrons can be accommodated in p-orbital?

2

10

14

6

37 / 41

Which one of the following consists of three subshells?

N shell

M shell

O shell

L shell

38 / 41

Deuterium is used to make________

Heavy Water

Hard Water

Light Water

Soft Water

39 / 41

The isotope C-12 is present in abundance of_____________

97.6%

96.9%

99.7%

None of these

40 / 41

Who predicted in 1920 that some neutral particle having mass equal to that of proton in an atom?

Bohr

Chadwick

Rutherford

Goldstein

41 / 41

The number of electrons that a shell can accommodate is given by formula.

3n2

2n2

2n

n2

Your score is

Share  your Result with friends:

LinkedIn Facebook

You Can Follow eStudent.pk on

0%

Restart quiz

Can u write your Feelings

How You Feel this

Send feedback

If you find any mistake in MCQs, please inform us by Commenting or by Contact us menu to improve the Quality of this free content.

Let’s see, How Students Solve this . . . . . . . Results  . . .

MCQs in PDF Format

(Download in pdf format)

(Correct Answers has shown at front end of each question)

. .

Short Question Answers in PDF Format

(Download in pdf format)

. .

Long Question Answers in PDF Format

(Download in pdf format)

. .

.

Chemistry Notes, Problems for Class 9th

Chemistry, a new subject for 9th Class, having a lot of concepts, starting from a single definition of the smallest particle of our universe which is called ‘atom’. In the 8th grade usually, we have to study only one book of science that combines chemistry, physics, and biology. But as, we got into 9th class and with every passing day things starts to get more complex now. similarly we got three books instead of just one science book.

And, if you any student of 9th Class feeling difficult to understand the concept of chemistry. Then, these chemistry notes for class 9 are enough. by Understanding chemistry Notes for 9th class means remembering a lot of concepts. Consider that particular subject important in which you want to study for your whole life. And, read more than just the textbook about that particular subject. If you think you want to study chemistry for your whole life that’s great, our country also need chemists.

Chemistry class 9 pdf

If any student searching to topics like Chemistry Notes for 9^th class,  Chemistry Notes for Class 9 pdf, Chemistry Notes for Class 9 MCQs, Chemistry Notes for class 9 Gujranwala board, Chemistry Notes for class 9 Lahore board, Class 9 Chemistry notes chapter 2, Chemistry class 9 chapter 2 pdf, Chemistry class 9 chapter-2 short questions, kips notes of chemistry for 9 class, 9th class chemistry solved exercises chapter 2, chemistry class 9 chapter 2 structure of atom, 9th class chemistry notes in English pdf download, 9th class chemistry solved exercises chapter 2 pdf, 9th class chemistry solved exercises chapter 2,  9th class chemistry notes in Urdu pdf download, Chemistry class 9 chapter-2 solved exercise pdf, Chemistry Notes for Class 9 Chapter-2, 9^th class chemistry notes in Urdu pdf download, Chemistry class 9 pdf, adamjee notes class 9 Chemistry 2022, adamjee notes for class 9 Chemistry, adamjee notes for class 9, adamjee notes, chemistry class 9, Chemistry Class 9 chapter 2, then all the solution if your problem is available within our website eStudent.pk

Chemistry class 9

Chemistry class 9 chapter 2, Chemistry class 9 pdf, Chemistry class 9 past papers, 

Chapter wise PDF Notes / Problems / Solution of Chemistry 9th Class

                     Chapter-01 – Fundamentals of Chemistry

                     Chapter-02 – Structure of Atoms 

                     Chapter-03 – Periodic Table and Periodicity of Properties

                     Chapter-04 – Structure of Molecules 

                     Chapter-05 – Physical States of Matter 

                     Chapter-06 – Solutions 

                     Chapter-07 – Electrochemistry 

                     Chapter-08 – Chemical Reactivity

                     Pairing Scheme for 2021 – Chemistry 9th Class