The snake charmer's bustee, stables where horses are housed,and piles of wood, all caught five accidentally.

Numbers of defective pens = 12 Numbers of good pens = 132 Total numbers of pen = 132 + 12 = 144 pens Favourable number of events = 132 Probability of getting a good...

(a) (i) and (ii) 

It would make it more difficult for us to walk on a soapy floor because layer of soap makes floor smooth. The coating of soapy water reduces the friction and...

The hand is washed immediately with plenty of water an a paste of sodium hydrogencarbonate (a base) is applied to neutralise the acid.

Charcoal is considered a better fuel than wood because: (i) It has high calorific value. (ii) It does not produce any smoke. Disadvantages: (i) 1 kg of wood on destructive distillation produces only 0.25...

Wood is a renewable source of energy. It is obtained by cutting trees. A new plant sapling usually takes more than 15 years to grow and mature into a tree....

No, it cannot be reversed, so it is an irreversible change.

Charcoal is obtained from wood by destructive distillation of wood. Charcoal is considered a better fuel than wood because  (i) it has higher calorific value than wood.  (ii) it does not produce...

(c) : No. of horses = 5 ∴ Probability that A can’t win the race = 4/5 x 3/4 Probability that ‘A’ must win the race = 1 - P(A bar) P(B bar) = 1...

On taking this snake below a fan, it moves in the anticlockwise direction. This is because, here the air is moving downwards.