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Chemistry MCQs Quiz For Entry Test
1. Sodium belongs to block of periodic table:
d-block
p-block
f-block
s-block (Answer)
2. Oxidation state of boron, aluminium and gallium is:
+2
+4
+3 (Answer)
+1
3. Mendeleev was a scientist:
French
Russian (Answer)
English
German
4. Most stable hydrides is of:
Bismuth
Thallium
Lead
Fluorine (Answer)
5. Properties of metals are:
All are true (Answer)
Tarnish in air
Malleable and ductile
Form basic oxides
6. The non-conductor, usually gaseous and volatile hydrides are:
Ionic
Complex
Intermediate
Covalent (Answer)
7. Oxides of metals are:
Super oxides
Amphoteric
Basic oxides (Answer)
Acidic oxides
8. Element with higher oxidation state form oxides:
Amphoteric
Basic
Acidic (Answer)
Peroxides
9. Periodic law was given:
Dobriener
Al-Razi
Newland
Mendeleev (Answer)
10. Law of octaves was given by:
Dobriener
Newland (Answer)
Mendeleev
Al-Razi
11. Period number 6 contains elements in the:
18
2
32 (Answer)
8
12. Stability of hydrides in a period from left to right:
Increases
Remains same (Answer)
Decreases
May increases or decreases
13. Hydrides formed between elements with E.N difference greater than 1.8 is:
Complex
Intermediate
Ionic
Covalent (Answer)
14. Law of traids was given by:
Mendeleev
Newland
Al-Razi
Dobriener (Answer)
15. Newland said, every eight element repeats properties of element:
3rd
1st
4th (Answer)
2nd
