Question

Why is dil. Hcl added before h2s gas in group 2 test?

Answer 1

ROCKSTARgirl Ace

Two stones of masses m and 2m are whirled in horizontal circles, the heavier one in radius \frac{r}{2}

2

r

and the lighter one in radius r. The tangential speed of lighter stone is n times that of the value of heavier stone when they experience same centripetal forces. The value of n is: (a) 3(b) 4(c) 1(d) 2

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