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- Question
Boron cannot form which one of the following anions? (1) BO2- (2) BF63- (3) BH4- (4) B(OH)4-
Options- A. Option 1
- B. Option 2
- C. Option 3
- D. Option 4
- Correct Answer
- Option 2
ExplanationDue to absence of low lying vacant d orbital in B, hybridization is not possible hence will not formed.
- 1. The mean surface temperature of the sun is estimated to be of the prder of
Options- A. 5500?C
- B. 4000?C
- C. 2000?C
- D. 1000?C Discuss
- 2. The Pyrenees mountains are located on the border between ____ and ____
Options- A. Romania, Bulgaria
- B. Norway, Sweden
- C. Hungary, Romania
- D. France, Spain Discuss
- 3. What is the relationship between resistivity r and conductivity s?
Options- A. R = s2
- B. R = s
- C. R > s
- D. R = 1/s Discuss
- 4. Which of the following is used as a lubricant?
Options- A. Graphite
- B. Silica
- C. Iron Oxide
- D. Diamond Discuss
- 5. Fenway Park is the home field of what Major League Baseball team?
Options- A. New York Yankees
- B. Chicago White Sox
- C. Montreal Expos
- D. Boston Red Sox Discuss
- 6. The religion of Afghanistan is
Options- A. Islam
- B. Buddhism
- C. Hinduism
- D. Christianity Discuss
- 7. Who was the first Indian woman to win a medal in the Olympics?
Options- A. P.T.Usha
- B. Karnam Malleshwari
- C. Kunjarani Devi
- D. Bachendri Pal Discuss
- 8. Who is known as 'Desert Fox'?
Options- A. Bismarck
- B. Eisenhower
- C. Gen. Rommel
- D. Walter Scott Discuss
- 9. The letters, "DOS" stand for...
Options- A. Data Out System
- B. Disk Out System
- C. Disk Operating System
- D. Data Operating System Discuss
- 10. Which of the following countries is not a member of SAARC?
Options- A. Nepal
- B. Bangladesh
- C. Afghanistan
- D. Myanmar Discuss
More questions
Correct Answer: 5500?C
Correct Answer: France, Spain
Correct Answer: R = 1/s
Correct Answer: Graphite
Correct Answer: Boston Red Sox
Correct Answer: Islam
Correct Answer: Karnam Malleshwari
Correct Answer: Gen. Rommel
Correct Answer: Disk Operating System
Correct Answer: Myanmar
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