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
+2 votes
31.2k views
in Chemistry by (48.0k points)

The number of Faradays(F) required to produce 20 g of calcium from molten CaCl2 (Atomic mass of Ca = 40 g mol–1) is : 

(1) 4 

(2) 1 

(3) 2 

(4) 3 

Please log in or register to answer this question.

4 Answers

+1 vote
by (48.4k points)

(2) 1

Ca+2 + 2e ® Ca(s) 

v.f. = 2 

As per faraday's 1st law Charge passed in faraday = g.eq of product 

= ´20/40 x 2 

= 1F 

0 votes
by (65 points)
w=ZQ.   => Q=w/Z

                     = 20/40/2 F

                     = 1F
0 votes
by (65 points)
w=ZQ.   => Q=w/Z

                     = 20/40/2 F

                     = 1FAs per faraday's 1st law Charge passed in faraday = g.eq of product
0 votes
by (65 points)
w=ZQ.   => Q=w/Z

                     = 20/40/2 F

                     = 1F

As per faraday's 1st law Charge passed in faraday = g.eq of product

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.

...