Question
Define the following terms:
  1. Colligative properties.
  2. Molality (m).

Answer

  1. Properties that are independent of nature of solute and depend on number of moles of solute only.
  2. Number of moles of solute dissolved per kg of the solvent.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Explain the direction of current and flow of electrons in Daniell cell.
How will you bring about the following conversion?
Ethane to bromoethene.
When MnO2 is fused with KOH in the presence of KNO3 as an oxidizing agent, it gives a dark green compound (A). Compound (A) disproportionates in acidic solution to give purple compound (B). An alkaline solution of compound (B) oxidises KI to compound (C) whereas an acidified solution of compound (B) oxidises KI to (D). Identify (A), (B), (C), and (D).
Calculate the number of unpaired electrons in the following gaseous ions: Mn3+, Cr3+, V3+ and Ti3+. Which one of these is the most stable in aqueous solution?
  1. Following reactions occur at cathode during the electrolysis of aqueous silver chloride solution:

Ag+(aq) + e- $\rightarrow$  Ag(s)               E= +0.80 V

H+(aq) + e- $\rightarrow$ H2(g)                  Eo = 0.00 V

On the basis of their standard reduction electrode potential (Eo) values, which reaction is feasible at the cathode and why?

  1. Define limiting molar conductivity. Why conductivity of an electrolyte solution decreases with the decrease in concentration?
When a coordination compound CoCl3 6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write
i. structural formula of the complex.
ii. IUPAC name of the complex.
Explain how rusting of iron is envisaged as setting up of an electrochemical cell.
What is the order of a reaction?
Explain the fact that in aryl alkyl ethers (i) the alkoxy group activates the benzene ring towards electrophilic substitution and (ii) it directs the incoming substituents to ortho and para positions in benzene ring.
How would you account for the following:
The d1 configuration is very unstable in ions.