Electrolysis Class 10 ICSE Chemistry MCQ Questions
Looking for Electrolysis Class 10 ICSE Chemistry Chapter 6 MCQ Questions? If yes, You are the right page. Here we have provided ICSE class 10 chemistry Chapter 6 multiple choice questions and answers. All MCQ are important.
1) Which of the following is Strong electrolyete?
a) Acetic acid
b) Nitric acid
c) Formic acid
d) Calcium hydroxide
Answer- Nitric acid
2) Metals and alloys are
a) Good conductor
b) Bad conductor
c) Non electrolytes
d) All the above
Answer- Good conductor
3) Anode is
a) Negative terminal
b) Neutral terminal
c) Positive terminal
d) Attracts cations
Answer- positive terminal
4) Reduction takes place at __
a) Anode
b) Cathode
c) Both depending on electrolytes
d) Depending on ions discharged at electrodes
Answer- Cathode
5) Ionic compounds
a) Have high melting point
b) Have both low as well as high melting point
c) Have low melting point
d) Non of these
Answer- Have high melting point
6) Metallic electrodes which do not tak part in an electrolytic reaction
a) Pt
b) Ni
c) Ag
d) Cu
Answer- Pt
7) Sn ion loses __ electrons to form Sn metal.
a) 1
b) 2
c) 3
d) 4
Answer- 2
8) Dissociation occurs in___ compunds
a) Covalent compunds
b) Coordinate compunds
c) Electrovalent compunds
d) Non of the above
9) According to activity series which of the following is more reactive?
a) Calcium
b) Zinc
c) Aluminium
d) Sodium
Answer- Calcium
10) Cathode used during electrolysis of lead bromide.
a) Copper
b) Platinum
c) Iron
d) Graphite
Answer- Graphite
11) Solution used during electroplating of nickel
a) NiSO4
b) NiCO3
c) NiSO3
d) Ni2SO4
Answer- NiSO4
12) Electrolyte used during refining of copper is
a) Copper sulphate solution
b) Copper solution
c) Copper nitrate solution
d) All the above
Answer- Copper sulphate solution
13) Which of the following acts as non electrolyte?
a) Acetic acid
b) Sodium hydroxide aqueous solution
c) Potassium chloride aqueous solution
d) Liquid Carbon tetrachloride
Answer- Liquid carbon tetrachloride
14) When dilute copper sulphate solution is used ion migrating at anode is
a) SO42-
b) OH-
c) Cu2+
d) H+
Answer- OH-
15) Inert electrode is
a) Copper
b) Nickel
c) Platinum
d) Silver
Answer- Platinum
16) In solid state NaCl is
a) Good conductor
b) Bad conductor
c) Both depending on condition
d) Non of the above
Answer –Bad conductor
17) Which base is weak electrolyte?
a) Barium hydroxide
b) Potassium hydroxide
c) Ammonium hydroxide
d) Sodium hydroxide
Answer- Ammonium hydroxide
18) If copper has to be plated with silver then copper is made___
a) Cathode
b) Anode
c) Electrolyte
d) Non of these
Answer- Anode
19) A non metal which is present in activity series of metals is
a) Copper
b) Sulphur
c) Hydrogen
d) Nitrogen
Answer- Hydrogen
20) Non electrolytes do not have ions in solution. They contain
a) Atoms
b) Molecules
c) Both
d) Non of the above
Answer- Molecules
21) The cations gain electrons at cathode. This process is called as
a) Oxidation
b) Reduction
c) Redox reaction
d) Non of the above
Answer- Reduction
22) Electrode which is connected at negative terminal of battery is__
a) Anode
b) Cathode
c) Electrode
d) Electrolyte
Answer- Cathode
23) Dark reddish brown fumes of__ evolve at anode
a) Chloride
b) Iodide
c) Bromide
d) Sulphide
Answer- Bromide
24) In electrochemical series of anions iodine is placed
a) Above Cl-
b) Below OH-
c) Above SO42-
d) Below Br-
Answer- below Br-
25) The conversion of ions into neutral species is called
a) Secondary change
b) Neutralization
c) Primary change
d) Ionisation
Answer- Primary change
For more update follow our net explanations homepage
FANTASTIC
it really helped me