0.5 moles
2.0 moles
12.0 moles
24.0 moles
Correct answer is B
No explanation has been provided for this answer.
A periodic maintenance activity carried out using a farm tractor is
Checking of radiator water
Checking of tire pressure
Cleaning after use
Changing of engine oil
Correct answer is C
A periodic maintenance activity carried out on farm tractor is changing of engine oil.
2,5 and 2
2,2 and 5
5, 1 and 2
1, 5 and 2
Correct answer is A
No explanation has been provided for this answer.
The volume occupied by 17g of H2S at s.t.p. is [H = 1.00, S = 32.0, Molar volume = 22.4 dm3]
11.2dm 3
17.0 dm3
34.0dm 3
44.8dm 3
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements about displacement reaction is correct?
A more electropositive element displaces a less electroposive one
A less electropositive element displaces a more electropositive one
The position of elements in the reactivity series has no effect on the reaction
it only occurs when the reaction is at equilibrium
Correct answer is A
No explanation has been provided for this answer.