JEE Advanced : Hydrogen & s-block elements
Which of the following statements are true?
-
The solubility of hydroxides and carbonates of group 1 elements increases down the group.
-
The melting point, boiling point and dielectric constant of heavy water is greater than regular water.
-
There are 2 pi bonds and 1 sigma bond between the 2 carbon atoms in calcium carbide.
-
Hydrogen peroxide can be obtained on heating water under extreme conditions (high temperature and pressure).
-
The stability of carbonates, oxides and sulphates of group 2 elements increases down the group.
Source : NCERT.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
1,3,5 are correct statements.
In 2nd statement, The correct statement should be that Melting point and Boiling point of Heavy water is greater than water but is opposite for Dielectric constant.
4th statement is completely useless and vague statement.