MCQ
The elevation in boiling point for one molal solution of a solute in a solvent is called
- ABoiling point constant
- ✓Molal elevation constant
- CCryoscopic constant
- DNone of these
✓
Answer
Correct option: B.
Molal elevation constant
b
Elevation of boiling point on adding one mole solute to $1000\, g$ solvent(one molal) is called molal boiling point elevation constant. It is denoted by $K _{ b }$. Its unit is $K\,kg\,mol^{-1}$, e.g. for water $K_b =0.52\, K\,kg\, mol^{-1}$.
Elevation of boiling point on adding one mole solute to $1000\, g$ solvent(one molal) is called molal boiling point elevation constant. It is denoted by $K _{ b }$. Its unit is $K\,kg\,mol^{-1}$, e.g. for water $K_b =0.52\, K\,kg\, mol^{-1}$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The cell potential for the following cell
→$Pt \left| H _{2}( g )\right| H ^{+}( aq ) \| Cu ^{2+}(0.01 M ) \mid Cu ( s )$
is $0.576 \,V$ at $298\, K$. The $pH$ of the solution is $......\,.$ (Nearest integer)
The energy of activation is
Arrange these compounds in decreasing order of basic strength ?
$4.5\,g$ of aluminium (at mass $27\,amu$) is deposited at cathode from $A{l^{3 + }}$ solution by a certain quantity of electric charge. The volume of hydrogen produced at $STP$ from ${H^ + }$ ions in solution by the same quantity of electric charge will be .............. $\mathrm{L} $
→A $0.0020\, m$ aqueous solution of an ionic compound $[Co(NH_3)_5(NO_2)]Cl$ freezes at $- 0.00732\,^oC.$ Number of moles of ions which $1\, mol$ of ionic compound produces on being dissolved in water will be
→$(K_f =-1.86\,^o\,C/m)$
The final product formed when acetaldehyde is reduced with sodium and alcohol is
The study of reaction kinetics is called __________.
Which of the following order is not correct
The radius of La3+ (atomic number of La = 57) is 1.06A. Which one of the following given values will be closest to the radius of Lu3+? (atomic number of Lu = 71)
Select the correct cell reaction of the cell
→$Pt(s)|Cl_2(g)|Cl^-(aq)||Ag^+(aq)|Ag(s)$