The incorrect statement among the following is :-

Glycerol is separated in soap industries by

The IUPAC name of the following compound is _______.-

Consider the following compounds

Arrange these compounds in the increasing order of reactivity with nitrating mixture.

A non-reducing sugar \("A"\) hydrolyses to give two reducing mono saccharides. Sugar \(A\) is

Given \((i)\,\,C\,({\rm{graphite}})\, + \,{O_2}{\kern 1pt} (g)\, \to \,C{O_2}\,(g);\,\Delta r{H^\circleddash} = x\,\,kJ\,mo{l^{ - 1}}\) \((ii)\,\,C\,({\rm{graphite}})\, + \,\frac{1}{2}{O_2}{\kern 1pt} (g)\, \to \,CO\,(g);\,\Delta r{H^\circleddash} = y\,\,kJ\,mo{l^{ - 1}}\) \((iii)\,\,CO\,(g)\, + \,\frac{1}{2}{O_2}{\kern 1pt} (g)\, \to \,C{O_2}\,(g);\,\Delta r{H^\circleddash} = z\,\,kJ\,mo{l^{ - 1}}\) Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct?

A gaseous hydrocarbon gives upon combustion \(0.72\, g\) of water and \(3.08\, g\) of \(CO_2.\) The empirical formula of the hydrocarbon is :

A thermally insulted vessel contains \(150\, g\) of water at \(0\,^oC\). Then the air from the vessel is pumped out a adiabatically. A fraction of water turns into ice and the rest evaporates at \(0\,^oC\) itself. The mass of evaporated water will be closes to ....... \(g\) (Latent heat of vaporization of water \(= 2.10 \times10^6\, Jkg^{-1}\) and Laten heat of Fusion of water \( = 3.36 \times10^5\,Jkg^{-1}\) )

Suppose \(y=y(x)\) be the solution curve to the differential equation \(\frac{d y}{d x}-y=2-e^{-x}\) such that \(\lim _{x \rightarrow \infty} y(x)\) is finite. If \(a\) and \(b\) are respectively the \(x-\) and \(y\)-intercepts of the tangent to the curve at \(x=0\), then the value of \(a-4 b\) is equal to\(....\)

Identify the correct statements :
A. Effective capacitance of a series combination of capacitors is always smaller than the smallest capacitance of the capacitor in the combination.
B. When a dielectric medium is placed between the charged plates of a capacitor, displacement of charges cannot occur due to insulation property of dielectric.
C. Increasing of area of capacitor plate or decreasing of thickness of dielectric is an alternate method to increase the capacitance.
D. For a point charge, concentric spherical shells centered at the location of the charge are equipotential surfaces.
Choose the correct answer from the options given below.

A metal chloride contains \(55.0 \%\) of chlorine by weight.\(100\,mL\) vapours of the metal chloride at \(STP\) weigh \(0.57\,g\). The molecular formula of the metal chloride is \(...\).(Given : Atomic mass of chlorine is \(35.5\,u\) )

The initial velocity \(v_{i}\) required to project a body vertically upward from the surface of the earth to reach a height of \(10\, R ,\) where \(R\) is the radius of the earth, may be described in terms of escape velocity \(v_{ e }\) such that \(v_{i}=\sqrt{\frac{x}{y}} \times v_{ e } .\) The value of \(x\) will be ...... .

Complete combustion of \(3\, g\) of ethane gives \(x \times 10^{22}\) molecules of water. The value of \(x\) is ......... (Round off to the Nearest Integer). [Use: \(N _{ A }=6.023 \times 10^{23} ;\) Atomic masses in \(u\) \(C : 12.0 ; O : 16.0 ; H : 1.0]\)