1
2
3
4
Correct answer is B
6.02 x 1023 molecules is 1mole
1.204 x 1024 molecules will be......
1.204×1024×16.02×1023
1.204×106.02 = 12.046.02 = 2moles
What is the value of n in the following equation? Cr2O72- + 14H+ + ne- → 2Cr 3+ + 7H2O...
Which of the following is an example of a mixture? ...
Which of the following are chemical changes? I. cooking of food II. digestion of food III...
Which of the following substances would not produce ethanol when fermented? ...
Methylethanoate reacts with ammonia to yield? ...
How many atoms are present in 6.0g of magnesium? [Mg = 24, NA = 6.02 x 1023 mol-1]...
Kerosine is commonly used to remove the red colour stain of palm oil from cloths because it ...
What is the atomic number of Krypton? ...
Consider the following half-cell reactions. Al(s) → Al3+(aq) + 3e- Cu2+(aq) + 2e- → Cu...
The most suitable substance for putting out petrol fire is ...