Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
183 views
in Chemistry by (30.6k points)
closed by

The metals high up in the reactivity series are very reactive. They cannot be obtained from their compounds by heating with carbon. For example, carbon cannot reduce the oxides of sodium, magnesium, calcium, aluminium, etc., to the respective metals. This is because these metals have more affinity for oxygen than carbon. These metals are obtained by electrolytic reduction. For example, sodium, magnesium and calcium are obtained by the electrolysis of their molten chlorides. The metals are deposited at the cathode (the negatively charged electrode), whereas, chlorine is liberated at the anode (the positively charged electrode). The reactions are At cathode Na+ + e- → Na At anode 2Cl- → Cl2+ 2e- 

1. Reactivity series cannot be obtained from _____.

a. Sodium

b. Carbon

2. Cl has what type of charge ____.

a. Positive

b. Negative

3. Metals Obtained by electrolysis are -

a. Sodium

b. Magnesium

c. Calcium

d. All of the above

4. Chlorine gas is released at ____.

a. Cathode

b. Anode

5. Magnesium has more affinity towards oxygen.

a. Yes

b. No

1 Answer

+1 vote
by (30.7k points)
selected by
 
Best answer

1. b. Carbon

2. b. Negative

3. d. All of the above

4. b. Anode

5. a. Yes

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...