List of practice Questions

Alkali metal from the following with least melting point is:
On heating, $LiNO_3$ gives how many compounds among the following?
$Li_2O,N_2,O_2,LiNO_2,NO_2 $
Amongst baking soda, caustic soda and washing soda, carbonate anion is present in

The geometry around boron in the product ‘B’ formed from the following reaction is

Match List-I with List-II:
 

List-I (Oxide)List-II (Nature)
(A) Cl2O7(I) Amphoteric
(B) Na2O(II) Basic
(C) Al2O3(III) Neutral
(D) N2O(IV) Acidic


Choose the correct answer from the options given below:

s-block element which cannot be qualitatively confirmed by the flame test is
Statement-I: An alloy of lithium and magnesium is used to make aircraft plates. 
Statement-II: The magnesium ions are important for cell-membrane integrity. 
In the light of the above statements, choose the correct answer from the options given below:
Aqueous solution of which of the following boron compounds will be strongly basic in nature?
Among the following, basic oxide is:
The correct order of density is
Lithium nitrate and sodium nitrate, when heated separately, respectively, give :
Portland cement contains ‘X’ to enhance the setting time. What is ‘X’?
Choose the correct statement from the following:

Match List - I with List - II : 

Choose the correct answer from the options given below : 
 

Assertion A : During the boiling of water having temporary hardness, Mg(HCO₃)₂ is converted to MgCO₃.
Reason R : The solubility product of Mg(OH)₂ is greater than that of MgCO₃.
The products obtained when chlorine gas reacts with cold and dilute aqueous NaOH are: