Fill in the blanks by choosing the appropriate word/words from those given in the
brackets:
(increases, formic acid, decreases, less, zero, small, paired, atoms, unpaired, ions, pentagonal bipyramidal, electrical, more, 

(i) An electrochemical cell converts ________ energy to _________ energy.

(ii) The crystal of graphite is made up of ______________ while that of sodium chloride is made up of __________________.

(iii) Ethyl isocyanide, on hydrolysis with dilute sulphuric acid, gives ______________ and _________________ .

(iv) The molar conductance of a solution _______________ with dilution, while its specific conductance _______________ with dilution.

(v) The Van’t Hoff factor of acetic acid solution is ____________than one and the value of normal colligative property is ____________ than the observed colligative property of this solution.

Complete the following statements by selecting the correct alternative from the choices given:-

Of the following terms used for denoting concentration of a solution, the one which does not get affected by temperature is:

• Molarity
  
  

• Molality
  
  

• Normality
  
  

• Formality

Complete the following statements by selecting the correct alternative from the choices given:-

The solubility of calcium hydroxide is s mol litre^-1. The solubility product under the same condition will be:

 

• 4s³

• 2s³

•  2s²

•  s³

Complete the following statements by selecting the correct alternative from the choices given:-

A current liberates 0.50g of hydrogen in 2 hours. The weight of copper (at.wt.= 63.5) deposited at the same time by the same current through Copper sulphate solution is:
 

 

• 63.5 g

• 31.8 g

• 15.9 g
  
  

• 15.5 g

Complete the following statements by selecting the correct alternative from the choices given:-

Natural rubber is a:

• Polyester

• Polyamide

• Polyisoprene

• Polysaccharide