MCQ Test

...................is defined as the no. of gram equivalents of solute present in 1L of solution.

• Molality

• Normality

• Molarity

• Mole fraction

Entropy is a measure of ………………energy of a system

• unavailable

• available 

• both a & b

• none of these

Half-life of first order   reaction   is   given   by…………….

• t^1/2 = 0.693/k   

• t^1/2 = k /0.693  

• t^1/2 = 1/k.a    

• t^1/2 = 3/2 ka²

Efficiency of heat engine is always ……….

• zero

• equal to one 

• greater than one  

• less than one.

. Gases which obey the gas laws at all temperatures and pressures are    

         called…………

• ideal gases  

• real gases   

• non-ideal gases     

• all of these

Flow of  heat from hot  to cold body is…….process

• natural 

• spontaneous 

• non-spontaneous

• both a & b

Velocity constant of first order reaction is expressed in ……….unit.

• dm³mol^-1 S^-1     

• mol lit^-1 S^-1  

• lit^-1 mol^-1 S^-1           

• Sec^-1

Q.1.Conductivity of electrolytic solutions depends on ..........

• (a) ionic speed
• (b) number of ions
• (c) both (a) and(b)
• (d) none of these

Q.2. On dilution equivalent conductivity……………

• (a) increases
• (b) decreases
• (c) remains same
• (d) all of these.

Q.3. The substances which conduct electric current are called…………

• (a) conductors
• (b) insulators
• (c) non-electrolytes
• (d) semiconductors