In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?
Anonymous Quiz
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.
Anonymous Quiz
26%
(i), (ii) and (iii)
40%
(i) and (iii)
19%
(i) and (ii)
14%
All statements are incorrect
A particle is moving in a circular path of radius r . The displacement after half of circle would be ?
Anonymous Quiz
17%
0
39%
πr
28%
2r
16%
2πr