JEE CHEMISTRY UNIT 10
QUIZ NO 3
TOTAL QUESTIONS = 20
1. The color of chlorine gas is
A. Brown
B. Yellow
C. Violet
D. Greenish-yellow
2. Which of the following oxides is amphoteric?
A. Al2O3
B. SiO2
C. B2O3
D. P2O5
3. The boiling point of NH3 is higher than PH3 due to
A. Hydrogen bonding
B. Dipole-dipole interactions
C. Higher molecular weight
D. Van der Waals forces
4. Which of the following is used as a refrigerant?
A. CO2
B. Cl2
C. O2
D. NH3
5. Which of the following hydrides has the highest boiling point?
A. H2Te
B. H2S
C. H2O
D. H2Se
6. Which of the following elements forms pπ-pπ multiple bonds?
A. Silicon
B. Tin
C. Carbon
D. Lead
7. Which of the following is the most stable allotrope of carbon?
A. Diamond
B. Fullerene
C. Carbon nanotubes
D. Graphite
8. The bond angle in water is approximately
A. 104.5°
B. 109.5°
C. 180°
D. 120°
9. Which of the following is the strongest reducing agent?
A. SO2
B. CO
C. H2S
D. P4
10. The hybridization of nitrogen in NH4+ is
A. sp2
B. sp
C. sp3
D. sp3d
11. Which of the following is used in the production of ammonia by the Haber process?
A. N2
B. H2
C. Both A and B
D. NH3
12. The acid strength of hydrides of group 16 elements increases in the order
A. H2O < H2S < H2Se < H2Te
B. H2Te < H2Se < H2S < H2O
C. H2O < H2Te < H2Se < H2S
D. H2Se < H2S < H2Te < H2O
13. Which of the following noble gases does not form compounds?
A. Ar
B. He
C. Xe
D. Kr
14. Which of the following elements is most electronegative in group 16?
A. Selenium
B. Oxygen
C. Sulfur
D. Tellurium
15. Which of the following compounds does not exist?
A. NF5
B. ClF3
C. OF2
D. BrF5
16. The bond angle in water is approximately
A. 120°
B. 180°
C. 109.5°
D. 104.5°
17. The reducing nature of hydrides of group 15 elements increases in the order
A. NH3 < PH3 < AsH3 < SbH3
B. SbH3 < AsH3 < PH3 < NH3
C. PH3 < NH3 < AsH3 < SbH3
D. AsH3 < SbH3 < PH3 < NH3
18. Which of the following is an example of a noble gas?
A. Hydrogen
B. Oxygen
C. Argon
D. Nitrogen
19. Which of the following oxides is neutral?
A. P2O5
B. CO2
C. SO2
D. CO
20. Which of the following halogens has the lowest boiling point?
A. Iodine
B. Fluorine
C. Bromine
D. Chlorine
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