Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Grade:

                        

Sodium and Potassium reacts violently with water and the metals dart about on the surface. However, if metals are wrapped in metal gauze,they can be kept underwater. A funnel is inverted over the metal gauze . A test tube full of water is inverted over the funnel. The hydrogen is given off in a steady stream, the quantity of water used should be large to prevent over-heating. in the above description, sodium is replaced with calcium but calcium doesn't have to be wrapped in metal gauze.Why?


Sodium and Potassium reacts violently with water and the metals dart about on the surface. However, if metals are wrapped in metal gauze,they can be kept underwater. A funnel is inverted over the metal gauze . A test tube full of water is inverted over the funnel. The hydrogen is given off in a steady stream, the quantity of water used should be large to prevent over-heating. in the above description, sodium is replaced with calcium but calcium doesn't have to be wrapped in metal gauze.Why?


8 years ago

Answers : (1)

Varun Harnathka
38 Points
							

I guess because Calcium is much more heavier!!

8 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 141 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts
 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details