Download or Preview 2nd Year Chemistry MCQs With Answers Chapter 3 along
with answers for both Entry Test and Board Exams.
IMPORTANCE OF THESE MCQS
It is tough and difficult task to solve 2nd year chemistry mcqs . Students
must have proper preparation of 2nd year chemistry mcqs for excellent
marks in chemistry 12.All the important mcqs related to chapter 3 of 2nd
year Chemistry are here for you. These questions are taken from past
papers of 2nd year chemistry of all Punjab Board of Pakistan as ;
Bahawalpur Board
D.G.Khan Board
Faisalabad Board
Gujranwala Board
Lahore Board
Multan Board
Rawalpindi Board
Content is created and designed with intense care and diligence.
These questions (MCQs) are top repetitive in previous papers. Each
question has a detailed answer explanation. In this way you learn from
your mistakes
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About This Chapter
Chapter no. 3 "Group III A and Group IV A Elements" of 2nd year
chemistry enables the students to learn and write the electronic
configuration of Group III A and Group IV A Elements . Students learn
About periodicity in physical and chemical properties Boron and Carbon.
Students learn structure and properties of oxides of carbon and silicon
and their uses. Students learn the uses of silicon and germanium in
semi-conductor industries. This "2nd year chemistry mcqs with answers
pdf Chapter 3" covers all important mcqs that are top repetitive in past
papers relevant to above mentioned topics.
👉For Answers of following questions click the show answer button.
1. Which element is not present abundantly in earth's crust?
(A) Silicon
(B) Sodium
(C) Aluminum
(D) Oxygen
(B) Sodium
2. Kaolin is the mineral of:
(A) Carbon
(B) Magnesium
(C) Silicon
(D) Aluminum
(D) Aluminum
3. Tin Cal is the mineral of?
(A) Al
(B) C
(C) Si
(D) B
(D) B
4. Chemical Composition of Colemanite is:
(A) Ca2B6O11.5H2O
(B) Na2B4O7.4H2O
(C) CaB4O7.4H2O
(D) CaNaB5O9.H2O
(A) Ca2B6O11.5H2O
5. Aqueous solution of borax:
(A) Acidic
(B) Alkaline
(C) Amphoteric
(D) None of these
(B) Alkaline
6. Borax has the Chemical Formula ?
(A) KNO3
(B) Na2B4O7.10H2O
(C) Na2CO3.H2O
(D) NaNO3
(B) Na2B4O7.10H2O
7. Boric acid can not be used?
(A) As antiseptic in medicine
(B) In Soda bottles
(C) For washing eyes
(D) For Enamel
(B) In Soda bottles
8. Aluminum oxide is :
(A) Acidic
(B) Basic
(C) Amphoteric
(D) Other
(C) Amphoteric
9. Which metal is used in thermite process because of its reactivity?
(A) Aluminum
(B) Iron
(C) Copper
(D) Zinc
(A) Aluminum
10. Which one is used in cosmetics?
(A) Talc
(B) Asbestos
(C) Sodium Sulphate
(D) Aluminum Sulphate
(A) Talc
11. Which elements forms an ion with charge 3+.?
(A) Beryllium
(B) Aluminum
(C) Carbon
(D) Silicon
(B) Aluminum
12. Which is not mineral of Aluminum?
(A) Diaspore
(B) Corundum
(C) Bauxite
(D) Galena
(D) Galena
13. The compound formed in borax bead test:
(A) Metal metaborates
(B) Boron oxide
(C) Metallic boron
(D) Metal boride
(A) Metal metaborates
14. Borax bead test is used for identification of metals that form?
(A) White salts
(B) Acidic salts
(C) Hydrated salts
(D) Colored salts
(D) Colored salts
15. The element which exhibit maximum catenation property is :
(A) Carbon
(B) Lead
(C) Germanium
(D) Tin
(A) Carbon
16. Ordinary glass is?
(A) Sodium silicate
(B) Magnesium silicate
(C) Calcium silicate
(D) Calcium and Sodium silicate
(D) Calcium and Sodium silicate
17. What is the formula of red lead?
(A) PbO
(B) Pb2O3
(C) Pb3O4
(D) PbO2
(C) Pb3O4
18. Which is the formula of litharge or massicot:
(A) PbO
(B) PbO2
(C) Pb3O4
(D) Pb2O3
(A) PbO
19. The chemical name of dry ice is:
(A) Silica
(B) Solid magnesium
(C) Solid CO2
(D) Solid benzene
(C) Solid CO2
20. Which is the most important ore of Aluminum?
(A) Feldspar
(B) Bauxite
(C) Cryolite
(D) Alumite
(B) Bauxite
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