Correct Answer: Option B

Explanation

Al has valency of 3+:

3F will deposit 27g

xF will deposit 9g

cross multiply → \(\frac{9g * 3F}{27g}\)

: 1F = 9g

Cu has valency of 2+:

2F will deposit 64g

1F will deposit xg

cross multiply → \(\frac{64g * 1F}{2F}\)

: 1F = 32g

• please who can teach me how to approximate numbers? Answer this

  1 Answers   ·   Mathematics   ·   2 hours ago
• Brownian movement was discovered by who? Answer this

  2 Answers   ·   Biology   ·   9 hours ago
• The executive is A. A committee of the legislature B. The body that makes the law C. The body that... Answer this

  3 Answers   ·   Government   ·   2 days ago