Options:
- A. Lead storage battery
- B. Silver oxide cell
- C. Fuel cell
- D. Ni-Cd cell
View Answer
B. Silver oxide cell
Chemistry
Apparent charge on atom in molecule is___________________?
Options:
- A. valency
- B. coordination number
- C. oxidation number
- D. charge number
View Answer
C. oxidation number
In pig iron the concentration of C-atom is ___________________?
Options:
- A. 0.12
- B. 2.5
- C. 2.0
- D. 0.25
View Answer
B. 2.5
Polymers described as large molecules built up from small repeating units called________________?
Options:
- A. Biopolymers
- B. Dimers
- C. Monomers
- D. metamers
View Answer
C. Monomers
A polymer in which three different monomers combine called_____________?
Options:
- A. Copolymer
- B. Terpolymer
- C. Homopolymer
- D. Biopolymer
View Answer
B. Terpolymer
Addition of urea to the soil is ____________ reaction?
Options:
- A. endothermic
- B. exothermic
- C. both a and b
- D. no heat energy is involved
View Answer
B. exothermic
Which of the following fertilizers is not useful for paddy rice ?
Options:
- A. urea
- B. DAP
- C. Ammonium sulphate
- D. Ammonium nitrate
View Answer
D. Ammonium nitrate
For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?
Options:
- A. Single
- B. Square
- C. Cube
- D. Raise to power four
View Answer
B. Square
In rate expression the concentration of reactants is negative. It shows_______________?
Options:
- A. Concentration of reactant does not change
- B. Concentration of product increases
- C. Concentration of reactant decreases
- D. Concentration of reactant increases
View Answer
C. Concentration of reactant decreases
If the volume of solution is equal to sum of volumes of its all components then the solution_____________?
Options:
- A. will be an ideal solution
- B. will be non-ideal solution
- C. will show deviations from Raoults law
- D. both b & c
View Answer
A. will be an ideal solution