What happens when crystals of washing soda are
What is coordinate bond?
the ion that is isoelectronic to CO is
a) O2-
b) N2+
c) CN-
d) O2+
Name it when Black Metallic Oxide reacts with HCL acid to give a coloured solution.
Why aqueous soloution of ammonia gives a pungent smell?
Explain atomic size of group 18 elements is more than the atomic size of group 17 elements
derive relationship between molar mass and density of gas?
give chemical test to distinguish between; (a) dil.H2SO4 and dil.HCL. (b)dil.sulphuric acid and conc. sulphuric acid.
is FeSO4 ACIDIC OR BASIC AND WHY?
State whether a litmus is a common acid base indicator or a universal indicator?Explain
Is PbO2 a base or not? Comment.
Give a chemical test to disintiguish between
1) Ammonium chloride and Sodium chloride
2) Sodium sulphate and Ammonium sulphate
why period 2 elements are called BRIDGE ELEMENTS
What happens when crystals of washing soda are
left open in dry air? What is this change named as? Name two industries based on the use of washing soda.What is coordinate bond?
the ion that is isoelectronic to CO is
a) O2-
b) N2+
c) CN-
d) O2+
Name it when Black Metallic Oxide reacts with HCL acid to give a coloured solution.
Why aqueous soloution of ammonia gives a pungent smell?
Explain atomic size of group 18 elements is more than the atomic size of group 17 elements
derive relationship between molar mass and density of gas?
give chemical test to distinguish between; (a) dil.H2SO4 and dil.HCL. (b)dil.sulphuric acid and conc. sulphuric acid.
is FeSO4 ACIDIC OR BASIC AND WHY?
State whether a litmus is a common acid base indicator or a universal indicator?Explain
Is PbO2 a base or not? Comment.
Give a chemical test to disintiguish between
1) Ammonium chloride and Sodium chloride
2) Sodium sulphate and Ammonium sulphate
why period 2 elements are called BRIDGE ELEMENTS