According to the Law of Universal Gravitation, the force of gravity between two objects is directly proportional to
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33%
the distance between the objects
51%
the product of the masses of the objects.
9%
the gravitational constant
7%
the mass of Earth
In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?
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23%
2H2(I) + O2(I) → 2H2O (g)
33%
2H2(g) + O2(I) → 2H2O (I)
34%
2H2(g) + O2(g) → 2H2O (I)
10%
2H2(g) + O2(g) → 2H2O (g)
Which of the statements about the reaction below are incorrect?
2PbO(s) + C(s) → 2Pb(s) + CO2 (g)(i) Lead is getting reduced.
(ii) Carbon dioxide is getting oxidised. (iii) Carbon is getting oxidised. (iv) Lead oxide is getting reduced.
2PbO(s) + C(s) → 2Pb(s) + CO2 (g)(i) Lead is getting reduced.
(ii) Carbon dioxide is getting oxidised. (iii) Carbon is getting oxidised. (iv) Lead oxide is getting reduced.
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26%
(i), (ii) and (iii)
40%
(i) and (iii)
19%
(i) and (ii)
14%
All statements are incorrect