9th Class Chemistry Chapter 8 TestPeriodic Table and Periodicity

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following groups contain alkaline earth metals?

   1. IA

   2. IIA

   3. VII A

   4. VIII A

2. Lanthanides belong to period:

   1. 4th

   2. 5th

   3. 6th

   4. 7th

3. The vertical columns present in the periodic table are called................:

   1. Group

   2. Period

   3. Both

   4. None

4. Electron affinity value ........... from top to bottom:

   1. Same

   2. Increases

   3. Decreases

   4. No change

5. Which are good conductor of heat and electricity?

   1. Metals

   2. Non-metals

   3. Metaloids

   4. All of these

6. Left to Right in a period, the size of atoms ......... generally:

   1. Increases

   2. Equal

   3. Decreases

   4. Not affect

7. Which of the following element belong to VIII A?

   1. Na

   2. Mg

   3. Br

   4. Xe

8. All transition elements belong to:

   1. s and p block

   2. d- block

   3. f-block

   4. d and f block

9. Period number tells about the:

   1. Number of valence electrons

   2. Number of electronic shells

   3. Both a and b

   4. None of above

10. 4th and 5th period of the long form of periodic table are called:

    1. Short periods

    2. Normal periods

    3. Long periods

    4. Very long periods