Question 1 :
The mole fraction of solute in a solution is 0.3 . The mole percent of solvent is:
Question 2 :
Which of the following are homogenous in nature ?<br>(i) Ice<br>(ii) Wood<br>(iii) Soil<br>(iv) Air
Question 3 :
The mole fraction of solute in 10% (w/w) aqueous NaOH solution is:
Question 4 :
The sum of mole fractions of solute and solvent of a solution is equal to:
Question 6 :
An ideal gaseous mixture of ethane and ethene occupy $28L$ as STP. The mixture required $128g$ ${O}_{2}$ combustion, ,mole fraction of ethene in the mixture is:
Question 7 :
The number of components in a binary solution are/is _______ .
Question 8 :
$Y$ molal solution of a compound in benzene has mole fraction of solute equal to $0.2$. The value of ?
Question 9 :
The sum of mole fractions of solute and solvent of a solution is equal to:
Question 10 :
In a glass we are having half filled water. Then we are continuously adding salt to the water and salt is getting dissolved into water. But a state occur when water is not able to dissolve salt. Then the solution is called as<b></b>
Question 11 :
$I$. Metallic solids tend to be very brittle.$II$. Metallic bonds are broken quite easily.
Question 13 :
What is the smallest part of the crystal that has the three-dimensional pattern of the whole lattice called?
Question 17 :
Which of the following compounds would be a white, crystalline solid?
Question 21 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Which of the following energy changes occur in galvanic cell?</p>
Question 22 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Hydrogen -Oxygen fuel cells are used in space craft to supply:</p>
Question 25 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Which of the following statements is true for fuel cells ?</p>
Question 28 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">In which reactants are not contained within the cell but are continuously supplied from external source?</p>
Question 29 :
In a cell, the following reaction takes place: $Fe + CuSO_{4} \rightarrow FeSO_{4} + Cu$. The cell can be represented as: