Which isoelectronic series is correctly arranged in order of increasing radius? ca^2+ < ar < k+ < cl^- ca^2+ < k^+ < ar < cl^- ca^2+ < k^+ < cl^- < ar k^+ < ca^2+ < ar < cl^- cl^- < ar < k^+ < ca^2+ of the choices below, which gives the order for first ionization energies? a1 > si > s > cl > ar s > si > cl > a1 > ar cl > s > al > ar > si cl > s > a1 > si > ar ar > cl > s > si > al

The answer is a. stable, hope i ya

Reaction involved in present system is :   c12h22o11 + h2o → 2 c6h12o6the reaction system is obeying following rate law:   rate = k[c12h22o11]thus, it is a first order reaction.now, for 1st order reactionrate constant (k) =  given: initial conc. = 3.0 g, final conc. = 2.7 g, t = 2.5 h∴rate constant (k) =  ∴ k = 0.04215 h-1now, for 1st order reaction, half life = 0.693/k = 0.693/0.04215 = 16.4 hthus correct answer is option b

Number of molecules=(12.01+2x15.9994)/112 x na