Which of the following on thermal decomposition yields a basic as well as an acidic oxide?
Two thin metallic strips carrying current in the direction shown, cross each other perpendicularly without touching but being close to each other, as shown. The regions which contain some points of zero magnetic induction are:
then x is
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
Select the wrong statement:
On a humid day in summer, the mole fraction of gaseous H2O (water vapour ) in the air at 25° C can be as high as 0.0287. Assuming the total pressure of 0.977 atm, what is the partial pressure of dry air ?
The coherent sources whose intensity ratio is 81:1 produce interference fringes. The ratio of minimum to maximum intensity i.e. Imin:Imax is
Cathode rays are produced when the pressure is of the order of
The correct IUPAC name of the acid
The rate of a First order reaction 0.04 {tex}mol^{-1} S^{-1}{/tex} at 10 seconds 0.03 {tex}mol^{-1} s^{-1}{/tex} at 20 seconds after intiation of reaction. The half life period of the reaction is
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