Periodic Properties and Variations-Class-10-MCQs

1. Atomic size depends on _______and________. Nuclear Charge Number of shells Both of the above None of the above

2. Which of the following is not a periodic property Atomic Radius Specific Heat Ionisation Energy Electronegativity

3.Between Li,Be,B,C, which one possesses the largest atomic radius Li Be B C

4.The Element with smallest atomic radius among Al,Si,P,S,Cl Al Cl Si P

5. ________ possess the highest ionisation energy. K Ne He Na

6. Which one of the following carries a positive electron affinity value Mg Al Na Si

7. Which halogen possess the highest electronegativity. I Br Cl F

8.The ability of the elements to lose the valence electrons in order to attain the electronic configuration of the nearest noble gas is called __________. Metallic Character Non Metallic Character Electronegatoivity Electron Affinity

9. The element with highest ionisation energy B Li O C

10.The unitless quantity among the following is Electronegativity Ionisation energy Electron affinity Atomic Size

11.With the increase in atomic size, electronegativity of element _______. Increases Decreases Remain Same

12.Higher the non-metallic nature, stronger the ______ agent it is more ______ the oxide of it will form. Reducing, acidic Oxidising, acidic Reducing, basic Oxidising, basic

13. Most reactive halogen among the following-Br, Cl, F, I Cl F Br I

14. The most electronegative among : Cl, Al, Na, P Cl Al Na P

15. _________ of an element is the tendency of its atom in a molecule to attract the shared pair of electrons towards itself in a covalent bond. Electron affinity Electronegativity Ionisation energy Atomic Size

16. Electron affinity of gaseous anion is Zero Negative Positive

17. Atomic size, metallic nature and reducing nature ________across a period Remain Same Increases Decreases

18. Chemical reactivity of the extreme left elements is due to- High ionisation energy Low ionisation energy High electronegativity High electron affinity

19.For non-metals , m.p and b.p in general, ________ down the group Decreases Increases Remain same

20.The amphoteric oxide among the following- Li2O CO BeO SO2

Periodic Properties and Variations-Class-10-MCQs

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