Options:
- A. Attractive forces
- B. Repulsive force
- C. Electrons
- D. Neutrons
View Answer
A. Attractive forces
Chemistry
Which of the following can be used in laptops ?
Options:
- A. Silver oxide battery
- B. Fuel cell
- C. Nickel cadmium cell
- D. Lead accumulator
View Answer
C. Nickel cadmium cell
Which element has same isotopes like palladium___________________?
Options:
- A. Nickel
- B. Calcium
- C. Cadmium
- D. Tin
View Answer
B. Calcium
When chlorine is passed through hot solution of caustic soda the reaction is said as___________________?
Options:
- A. Displacement
- B. Reduction
- C. Disproportionation reaction
- D. Double displacement reaction
View Answer
C. Disproportionation reaction
A double bond consists of __________________?
Options:
- A. Two sigma bonds
- B. Two Pi bonds
- C. One sigma and one Pi bonds
- D. One sigma and two Pi bonds
View Answer
C. One sigma and one Pi bonds
Octane number 2 2 4-trimethyl pentane is________________?
Options:
- A. 100
- B. 90
- C. 80
- D. 70
View Answer
A. 100
In cyano group the carbon atom shows which kind of hybridization___________________?
Options:
- A. sp2
- B. sp
- C. sp3
- D. none of the above
View Answer
B. sp
When enthalpy of reactants is higher than product then reaction will be_________________?
Options:
- A. endothermic
- B. spontaneous
- C. non-spontaneous
- D. exothermic
View Answer
D. exothermic
The ttractive forces between the partial positive end of one molecule and partial negative end of other molecule are called________________?
Options:
- A. Dipole-dipole forces
- B. Ion dipole-dipole forces
- C. London dispersion forces
- D. Debye forces
View Answer
A. Dipole-dipole forces
Which one is false for evaporation ?
Options:
- A. Surface phenomenon
- B. Continuous
- C. Exothermic
- D. Cause cooling
View Answer
C. Exothermic