The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was:
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Let αand βbe the roots of equation x2−6x−2=0. If an=αn−βn,forn≥1, then the value of 2a9a10−2a8is equal to:
Which of the following compounds will exhibit geometrical isomerism ?
As an electron makes a transition from an excited state to the ground state of a hydrogen - like atom/ion :
Let Tnbe the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If Tn+1−Tn=10, then the value of n is
An unknown alcohol is treated with the ''Lucas reagent'' to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism:
If x=−1and x=2are extreme points of f(x)=αlog∣x∣+βx2+x, then
Let tan−1y=tan−1x+tan−1(1−x22x), where ∣x∣<31. Then a value of y is :
Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar?