Two atoms are said to be isotopes, if:
Important Questions on Practice Set
Consider the following functions of xylem:
1. Conduction of water.
2. Conduction of minerals.
3. Mechanical support.
Which of the function(s) of xylem given above is/are correct?
Consider the following statements:
1. An atom bomb is based upon the principle of nuclear fission.
2. Hydrogen bomb is based upon the principle of nuclear fusion.
3. Nuclear reactor is based upon the principle of controlled nuclear fission.
Which of the statements given above is/are correct?
Consider the following statements:
1. Technetium was the first element to be made artificially.
2. The non-metals are poor conductors of heat and electricity.
3. Hydrogen has a single positive charge, like the alkali metals but at room temperature, it is a gas that doesn't act as labeled metal. Therefore, hydrogen is a non-metal.
Which of the statements given above is/are correct?
Consider the following statements:
Amphibians have evolved from fishes.
Archaeopteryx is a fossil linking fishes and amphibians.
Which of the statements given above is/are correct?
Match the following:
| List-I (Research centers) | List-II (Locations) |
| A. Bhabha Atomic Research Centre | 1. Kolkata |
| B. Indira Gandhi Centre for Atomic Research | 2. Mumbai |
| C. Variable Energy Cyclotron Centre | 3. Kalpakkam |
| D. Uranium Power Corporation of India Ltd. | 4. Jaduguda |
Consider the following statements:
1. A galvanometer is converted into an ammeter when we connect a low resistance in parallel.
2. A galvanometer is converted into a voltmeter when we connect a high resistance in series.
3. The conductivity of the superconductor is infinite.
Which of the statements given above is/are correct?
Consider the following statements:
. Amoeba's interchange of gases occurs through the general body surface.
. The excess water in the Amoeba is controlled by the contractile vacuole.
Which of the statements given above is/are correct?
