No of {tex}H_2O{/tex} molecules in a drop of water weighing 0.05g 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 :
If vectors a, b, c are non zero, non coplanar vectors, then (c x a) x (a x b) is
For the datathe Karl Pearson coefficient 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:
If (2, 3, 5) is one end of a diameter of the sphere x2 + y2 + z2 - 6x - 12y - 2z + 20 = 0, then the coordinates of the other end of the diameter are
The oxidation state of the most electronegative element in the products of the reaction between {tex}BaO_2{/tex} and {tex}H_2SO_4{/tex} are:
The major product of the reaction between tert-butylchloride and sodium-ethoxide is
Which of the following on thermal decomposition yields a basic as well as an acidic oxide?
Which of the following has maximum number of lone pairs associated with Xe?
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