The gas that will form a white precipitate with acidified silver trioxonitrate (v) is
NH3
SO2
CO2
HCL
Correct answer is D
No explanation has been provided for this answer.
Which of the following statement is true of the electrochemical series?
Electropositivity of metals increase down the series
Electropositivity of non-metals decrease down the series
Electronegativity of non-metals decrease down the series
Electropositivity of metals decreases down the series
Correct answer is D
No explanation has been provided for this answer.
the heat content of the reactants is lower than that of the products
the heat content of the reactants is higher than that of the products
the reaction is slow
a large amount of heat is absorbed
Correct answer is B
No explanation has been provided for this answer.
X/4 g
X/2 g
2X g
4X g
Correct answer is B
From M = zit
Where M = to the mass of the metal liberated
z = Is the electrochemical equivalent
∴ X g = 1 * 1 * 40 * 60
X g = 2400 I
Let Y represent the new mass
Y = 1*2I * 10 * 60
Y = 1200 I
Y/(X g) = 1200 I/2400 I
Y = X/2 g
0.0
1.0
2.0
3.09
Correct answer is D
No explanation has been provided for this answer.