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PG TRB Chemistry Question Paper with Answers

TRB Model Questions
1. The hybridization of carbon in ethane is
 
  • A. sp
  • B. dsp2
  • C. sp2
  • D. sp3
Answer: B.
dsp2
 
2. The characteristic odour of garlic is due to
 
  • A. Acetic acid
  • B. A fluorine compound
  • C. A sulphur compound
  • D. A chloro compound
Answer: C.
A sulphur compound
 
 
3. Which of the carbohydrates is used in silvering of mirror?
 
  • A. Glucose
  • B. Starch
  • C. Cellulose
  • D. Sucrose
Answer: C.
Cellulose
 
4. Which will explode on detonation in the dry state?
 
  • A. Picric acid
  • B. Sodium peroxide
  • C. O – bromophenol
  • D. Sodium
Answer: D.
Sodium