Given the polymers ; A = Nylon ; B = Buna - S;C = Polythene. Arrange these in increasing order of their intermolecular force (lower to higher)
The values of λ so that the line 3x-4y=λ touches x2+y2-4x-8y-5=0 are
The condition that ax + by + c = 0 is tangent to the parabola y2 = 4ax is
Which substance serves as a reducing agent in the following reaction, {tex}14H^{+} + Cr_2O^{2-}_7 + 3Ni \rightarrow 2Cr^{3+} + 7H_2O + 3Ni^{2+}{/tex}
A flask was filled with {tex}CCl_4{/tex} vapours at a particular temperature and pressure. These vapours were then replaced by oxygen gas at the same temperature and pressure, the mass of {tex}CCl_4{/tex} vapours will be
If X = , then Xn, for n ∈ N is equal to
The angle of minimum deviation in an equilateral prism of refractive index 1.414 is
Standard enthalpy and standard entropy change for the oxidation of {tex}NH_3{/tex} at 298 K, are {tex}-382.64 kJ mol^{-1}{/tex} and {tex}-145.6 J mol^{-1}{/tex} respectively. Standard Gibbs energy change for the same reaction at 298 K is :
In Young's double slit experiment, the width of one of the slits is slowly increased to make it twice the width of the other slit. Then in the interference pattern:
A spring of force constant k is cut into two pieces such that one piece is double the length of the other. The force constant of the longer piece will be
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