Options:
- A. synthetic
- B. Protein
- C. Cellulose
- D. Nylon
View Answer
D. Nylon
Chemistry
The rate of formation of ozone depends on the flux of:
Options:
- A. visible radiation
- B. Ultra violet radiation
- C. Infrared radiation
- D. Gamma rays
View Answer
B. Ultra violet radiation
Traffic policemen on duty at busy street crossings during heavy traffic rush hours are advised to use:__________?
Options:
- A. Hydrogen tank
- B. Nitrogen tank
- C. Oxygen tank
- D. None of these
View Answer
C. Oxygen tank
Benzene gives mainly_________?
Options:
- A. Addition reaction
- B. Substitution reactions
- C. Halogenation
- D. All of these
View Answer
B. Substitution reactions
The earth absorb radiation in Visible range but emit radiation at the same rate in the:
Options:
- A. Ultra voilet
- B. Gamma rays
- C. Infrared
- D. All of these
View Answer
C. Infrared
The Chemical Formula of Sand is___________?
Options:
- A. Si2O3
- B. SiO2
- C. Al2O3
- D. Sr2O
View Answer
B. SiO2
What is the mass of one mole of Iodine?
Options:
- A. 74g
- B. 254g
- C. 127g
- D. 53g
View Answer
B. 254g
Which of the following can be separated by
Options:
- A. Sand and Iron Filing
- B. Sand and Naphthalene
- C. Both A & B
- D. None
View Answer
B. Sand and Naphthalene
Atoms of all the elements always contain in nucleus:
Options:
- A. Proton and neutron
- B. Neutron and electron
- C. Proton
- D. Neutron
View Answer
C. Proton
Why do we determined the boiling point of a liquid?
Options:
- A. To check its Acidity and Basicity
- B. To Check temperature
- C. To check its Purity and nature
- D. None of These
View Answer
C. To check its Purity and nature