| 1 |
Which of he following solution is used in photography?
|
Sodium thiosulfate<br>
sodium silver <br>
Silver bromide <br>
Silver salt <br>
|
| 2 |
Glycol is added to aviation gasoline because it:
|
Prevent s freezing of Petrol<br>
reduces consumption o9f petrol <br>
reduces evaporation of petrol <br>
increase efficiency of petrol <br>
|
| 3 |
Which of the following be be used to absorb neutrons to control the chain reaction during nuclear fission?
|
Uranium <br>
Plutonium <br>
Boron <br>
Heavy water <br>
|
| 4 |
Which of the following is the chemical name of the salt we use on our Kitchen?
|
Sodium Chloride <br>
Ammonium Sulphate <br>
Sodium carbonate <br>
Calcium chloride <br>
|
| 5 |
Stainless steel is an alloy of:
|
Iron ,Carbon and Nickel<br>
Iron and Manganese <br>
Iron, Chromium and Zinc<br>
Iron, Chromium and Nickel <br>
|
| 6 |
It is a industrial process of producing ammonia by the reaction of nitrogen with hydrogen in the presence of a catalyst:
|
Solvay Process <br>
Haber process <br>
Bayer process <br>
Bessemer process<br>
|
| 7 |
Which of the following is not a mixture?
|
LPG <br>
Air <br>
Gasoline <br>
Distilled water <br>
|
| 8 |
Which are on the outer orbit of atoms?
|
Proton <br>
Neutron <br>
Electrons <br>
None of these <br>
|
| 9 |
Which particle of atoms has a negative charge?
|
Proton <br>
Neutron <br>
Electrons <br>
None of these <br>
|
| 10 |
Which particle of atom had no charge:
|
Proton <br>
Neutron <br>
Electrons <br>
None of these <br>
|
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