Chemistry

Concentrated Sulphuric acid is added to Sugar Crystals
Dilute Hydrochloric acid is added to Copper carbonate
Dilute Hydrochloric acid is added to Sodium thiosulphate
The tendency of an atom to attract electrons
The catalyst used in the conversion of ethyne to ethane
The type of reactions alkenes undergo
The electrons present in the outermost shell of an atom
A gas of mass 32gms has a volume of 20 litres
How much Calcium oxide is formed when 82g of calcium nitrate
Match the salts given in Column I with their method of preparation
Write the IUPAC names of each of the following
Rewrite the following sentences by using the correct symbol
Use the letters only written in the Periodic Table
If an element has a low ionization energy then it is likely to be
If an element has seven electrons in its outermost shell
The following table shows the electronic configuration of the elements W, X, Y, Z:
Burning of ethane in plentiful supply of air
Action of water on Calcium carbide
Heating of Ethanol at 170oC in the presence of conc
Give the structural formulae
Equation for the reaction when compound A is bubbled through bromine
Cold, dilute nitric acid reacts with copper to give
Identify the gas evolved and give the chemical test
State your observations when ammonium hydroxide solution is added drop by drop
Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode)
Name the product formed at the anode during the electrolysis of acidified
A gas cylinder contains 12 x 1024 molecules of oxygen gas
A gaseous hydrocarbon contains 82.76% of carbon
The equation $ \ce{4NH3 + 5O2 -> 4NO + 6H2O} $, represents the catalytic oxidation of ammonia
By drawing an electron dot diagram show the formation of Ammonium Ion
Name the gas evolved when the following mixtures are heated
When excess of ammonia is treated with chlorine
A, B, C and D summarize the properties of sulphuric acid depending
Sodium Chloride will conduct electricity only in fused or aqueous solution state
In the electroplating of an article with silver
Although copper is a good conductor of electricity
Name the solution used to react with Bauxite as a first step in obtaining pure aluminum oxide
Write the equation for the reaction where the aluminum oxide
Name the compound added to pure alumina to lower the fusion temperature
Write the equation for the reaction that occurs at the cathode
Explain why it is preferable to use a number of graphite electrodes
State what would you observe when
NaOH solution when added to the Solution (A) gives a reddish brown precipitate
NH4OH Solution when added to the Solution (B) gives white ppt which does not dissolve in excess
NaOH Solution when added to Solution (C) gives white ppt which is insoluble in excess
An electrolyte which completely dissociates into ions is
The most electronegative element from the following elements is
The reason for using Aluminium in the alloy duralumin is
The drying agent used to dry HCl gas is
A hydrocarbon which is a greenhouse gas is