Which metal pollute the air of a big city?
Copper
Chromium
Lead
Cadmium
Additional Questions
|
Bell metal is an alloy of |
Answer |
|
Water is a good solvent of ionic salts because |
Answer |
|
Which of the following is not an isotope of hydrogen? |
Answer |
|
The main constituents of pearls are |
Answer |
|
Amalgams are |
Answer |
|
Which of the following is the lightest metal? |
Answer |
|
Which of the following metals remain in liquid for under normal conditions? |
Answer |
|
Potassium Permanganate is used for purifying drinking water, because |
Answer |
|
Which of the following is an element? |
Answer |
|
Which of the following is used as a moderator in nuclear reactor? |
Answer |