- (A) 2
- (B) 3
- (C) 4
- (D) 5
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- (A) 1 Molar solution
- (B) 1 molal solution
- (C) 1 normal solution
- (D) all have same concentration
- (A) Aug – Nov
- (B) Sep – Nov
- (C) Nov – Dec
- (D) Dec – Jan
- (A) Cl2
- (B) O3
- (C) ClO2
- (D) both B & C
- (A) Ammonia
- (B) Dissolved oxygen
- (C) Carbon dixide
- (D) All
- (A) 10
- (B) 100
- (C) 10000
- (D) 100000
- (A) DO
- (B) BOD
- (C) COD
- (D) all of the above
- (A) CO
- (B) NO2
- (C) both a & b
- (D) none of the above
- (A) SO3
- (B) CO
- (C) NO
- (D) H2SO4
- (A) dinitrogen oxide
- (B) nitrogen dioxide
- (C) chlorine gas
- (D) chlorine dioxide
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