Which of the following is a set of neutral oxides?
N\(_2\)O, H\(_2\)O, CO
N\(_2\)O, SO\(_2\), CO
N\(_2\)O, Na\(_2\)O, ZnO
N\(_2\)O, SO\(_3\), NO
Correct answer is A
No explanation has been provided for this answer.
Which process(es) is/are involved in the turning of starch iodide paper blue-black by chlorine gas?
chlorine attacks the starch to give the blue-black color
chlorine attacks the iodide ion to give the blue-black color
chlorine oxidizes the iodide ion to produce iodine which attacks the starch to give the blue-black color
iodine attacks the starch to give the blue-black color
Correct answer is C
No explanation has been provided for this answer.
When chlorine water is exposed to bright sunlight, the following products are formed
HCl\(_{(aq)}\) and Cl\(_2\)
HOCl\(_{(aq)}\) and Cl\(_2\)
HCl\(_{(aq)}\) and O\(_2\)
HOCl\(_{(aq)}\) and O\(_2\)
Correct answer is C
No explanation has been provided for this answer.
Which of the following alkaline earth metals react more spontaneously with water?
Calcium
Beryllium
Magnesium
Strontium
Correct answer is D
The Group 2 metals become more reactive towards water as you go down the Group.
Zinc
Manganese
Sodium
Iron
Correct answer is C
No explanation has been provided for this answer.