Chemical Bonding — Chemistry STD 10 — Question

A researcher measures 10.0 liters of oxygen gas (O₂) at 300 K and 2 atm. The researcher then measures 10.0 liters of nitrogen gas (N₂) under the same conditions.
(i) How do the number of moles of oxygen and nitrogen gases compare?
(ii) Describe the principle from Avogadro's Law that supports this comparison.

Draw the structural formula for the following compounds:
isomer of n-butane

In a group, a particular element has the lowest ionization potential; does it ionize most easily or least easily? Explain with example.

Write equations for each of the above metal which reacts with water.

(a) Describe what would you see at the anode and the cathode during electrolysis of copper (II) chloride, using platinum as cathode and carbon as anode. Write ionic equations for the reactions at anode and cathode.
(b) Give two uses of electrolysis.

Give reasons for the following:
Lead bromide undergoes electrolytic dissociation in the molten state but is a non-electrolyte in the solid-state.

Aluminium is a more active metal than iron, but suffers less corrosion. Why?

State the method of preparation of ethanol by hydrolysis of ethyl bromide.

From the list of the substances given, name the substances which you would use to prepare each of the following salts :
List of substances : Copper, lead, sodium, zinc, copper oxide, lead carbonate, sodium carbonate solution, dilute hydrochloric acid, dilute nitric acid and dilute sulphuric acid.
Salts: (a) zinc sulphate (b) copper sulphate (c) sodium sulphate (d) lead sulphate.