[C] 2H₂(g) + O₂(g)→ 2H₂O(l) You should know that, the standard state for hydrogen and oxygen is gas and for water is liquid at reaction temperature. Hence, you should choose the option [C].
[C] 2H₂(g) + O₂(g)→ 2H₂O(l)
You should know that, the standard state for hydrogen and oxygen is gas and for water is liquid at reaction temperature. Hence, you should choose the option [C].
In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?
[C] 2H₂(g) + O₂(g)→ 2H₂O(l) You should know that, the standard state for hydrogen and oxygen is gas and for water is liquid at reaction temperature. Hence, you should choose the option [C].
[C] 2H₂(g) + O₂(g)→ 2H₂O(l)
See lessYou should know that, the standard state for hydrogen and oxygen is gas and for water is liquid at reaction temperature. Hence, you should choose the option [C].
A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is
[B] – 20 cm Putting all the values in mirror formula: 1/(-30) + 1/(-60) = 1/f Or, 2+1/-60 = 1/f 1/f = 3/-60 Or, f = -20 cm
[B] – 20 cm
See lessPutting all the values in mirror formula:
1/(-30) + 1/(-60) = 1/f
Or, 2+1/-60 = 1/f
1/f = 3/-60
Or, f = -20 cm
Which of these statements is correct about peristaltic movement?
[B] It is the contraction and expansion of walls of food pipe.
[B] It is the contraction and expansion of walls of food pipe.
See less