12th Class Chemistry Chapter 1 MCQs with Answers

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Grade 12 Chemistry Chapter 1 Online Quiz

By presenting 3 options to choose from, 12th Class Chapter 1 Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of 12th Class Questions and Answers and click over the correct answer.

• Test Name: 12th Class Chemistry Chapter 1 Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

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12th Class Chemistry Chapter 1: Periodic Classification Of Elements & Periodicity

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1 / 40

Which group of elements is known as the "halogens"?

Group 18

Group 1

Group 17

2 / 40

Which element has the highest ionization energy?

Fluorine

Francium

Helium

3 / 40

Which group of elements is known as the "transition metals"?

Group 3-12

Group 1

Group 17

4 / 40

Which element has the highest electronegativity value?

Fluorine

Francium

Oxygen

5 / 40

What is the chemical symbol for gold?

Al

Ag

Au

6 / 40

What is the atomic number of carbon?

14

12

6

7 / 40

What is the atomic number of silicon?

14

32

26

8 / 40

What is the chemical symbol for uranium?

U

Un

Ur

9 / 40

What is the atomic number of helium?

8

4

2

10 / 40

What is the atomic number of calcium?

40

12

20

11 / 40

What is the chemical symbol for lead?

Pl

Pb

Ld

12 / 40

What is the chemical symbol for iron?

In

Fe

Ir

13 / 40

Which element has the highest atomic radius?

Helium

Oxygen

Cesium

14 / 40

What is the chemical symbol for potassium?

Po

K

Pt

15 / 40

Which element has the lowest density?

Mercury

Osmium

Helium

16 / 40

What is the chemical symbol for mercury?

Mg

Hg

Me

17 / 40

What is the chemical symbol for silver?

Si

Au

Ag

18 / 40

What is the chemical symbol for platinum?

Pt

Pn

Pl

19 / 40

Who proposed the concept of periodic law?

Dmitri Mendeleev

Ernest Rutherford

Niels Bohr

20 / 40

What is the name given to the horizontal rows in the periodic table?

Families

Periods

Groups

21 / 40

Who is credited with the modern periodic table?

Dmitri Mendeleev

John Dalton

Marie Curie

22 / 40

Which group of elements is known as the "noble gases"?

Group 17

Group 2

Group 18

23 / 40

Which element has the highest melting point?

Tungsten

Mercury

Carbon

24 / 40

Which element has the highest density?

Helium

Mercury

Osmium

25 / 40

What is the name given to the vertical columns in the periodic table?

Groups

Families

Periods

26 / 40

Which element has the highest melting point?

Tungsten

Carbon

Mercury

27 / 40

Which element has the highest electron affinity?

Chlorine

Oxygen

Neon

28 / 40

Which element has the highest atomic mass?

Mercury

Uranium

Tungsten

29 / 40

What is the atomic number of sodium?

22

11

23

30 / 40

What is the atomic number of oxygen?

8

32

16

31 / 40

What is the atomic number of uranium?

238

146

92

32 / 40

Which element has the highest electronegativity value?

Francium

Oxygen

Fluorine

33 / 40

What is the atomic number of iodine?

131

53

35

34 / 40

Which element has the lowest electronegativity value?

Francium

Fluorine

Helium

35 / 40

What is the chemical symbol for copper?

Cu

Cp

Cp

36 / 40

What is the atomic number of chlorine?

17

53

35

37 / 40

What is the chemical symbol for nitrogen?

Na

N

Ni

38 / 40

Which group of elements is known as the "alkali metals"?

Group 1

Group 17

Group 7

39 / 40

Which element has the highest atomic mass?

Tungsten

Uranium

Mercury

40 / 40

Which element has the highest boiling point?

Mercury

Tungsten

Carbon

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