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3 g of activated charcoal was added to 50 mL. of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is :

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Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar?

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A multiple choice examination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just by guessing is

Given : A circle, $2x_{2}+2y_{2}=5$and a parabola, $y_{2}=45 x$.Statement - I : An equation of a common tangent to these curves is $y=x+5 $Statement - II : If the line, $y=mx+m5 (m=0)$is their common tangent, then m satisfies $m_{4}−3m_{2}+2=0.$

An organic compound A upon reacting with NH3 gives B. On heating B gives C. C in presence of KOH reacts with $Br_{2}to giveCH_{3}CH_{2}NH_{2}.$ A is

The integral $∫(1+x−x1 )e_{x+x1}dx$ is equal to