Question 1 :
Which of the followingcan conduct electricity in the solid state ?

Question 2 :
Soap molecules have two parts - a polar and a non-polar. When soap is added to water:

Question 3 :
Give the IUPAC name of the complex compound $\left[ Co{ \left( N{ H }_{ 3 } \right)  }_{ 4 }\left( { H }_{ 2 }O \right) Br \right] { \left( N{ O }_{ 3 } \right)  }_{ 2 }$ .

Question 5 :
Which of the following group 14 elements shows maximum tendency towards catenation?

Question 6 :
Successive members of homologous series differ form one another in their mass by :

Question 10 :
Amongst all elements in the periodic table, which element shows maximum catenation ?<br/>

Question 13 :
The following characteristics of a substance are given.What is the name of this substance?<br/>(i) It is used as an abrasive for cutting glass.<br/>(ii) It is used as a tip of deep boring drills.<br/>(iii) It is used for making dies for drawing wires.<br/>(iv) It is used in generating laser beams in electronics.

Question 18 :
Assertion: Pentane and 2-methyl pentane are homolo-gues Reason: Pentane is a straight-chain alkane, while 2-methyl pentane is a branched-chain alkane

Question 19 :
Which of the following is not a member of homologous series?

Question 20 :
A hydrocarbon contains all the three of H atoms, i.e., 1, 2, and 3. The relative ratios of abstraction of ................... H atoms are 5.0 : 3.8 : 1.0.