Chemistry - Single MCQs (Page 55)

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Q541. Which of the following among alkali metals is most reactive?...Q542. The ratio of y for inert gases is?...Q543. Which has maximum calorific value?...Q544. Which of the following catalyst is sensitive to tempreture changes?...Q545. The density of the gas is equal to?...Q546. Which of the following gases will have the highest rate of diffusion?...Q547. Red litmus paper is changed into blue in solution of?...Q548. pH value of acidic solution is?...Q549. The maximum number of hydrogen bonds is a H2O molecule is?...Q550. The heaviest naturally occurring elements is?...