Question
When electricity is passed through water, what kind of
chemical reaction occurs?Solution
When electricity is passed through water, a decomposition reaction called electrolysis occurs, splitting water (H₂O) into hydrogen gas (H₂) and oxygen gas (O₂).
A box contains 5 red, 6 green and 3 yellow balls. 2 balls are drawn at random. What is the probability that they are not of the same colour?
A bag has 4 red, 3 blue, and 3 green balls. Two are drawn without replacement. Find probability that both are of different colors.
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
Max has a 1/4 chance of failing his Quant test and a 4/5 chance of passing his Reasoning test. What is the probability that he fa...
Out of 6 white marbles, 3 blue marbles, in how many ways we select one or more marbles?
A bag contains (2x + y) red taps, 32 black taps and (3x – y) yellow taps. The probability of picking a red tape at random is 4/13 while the probabilit...
If 2 pens are drawn at random what is the probability that none of them is blue?
If a coin is tossed 10 times then what is the probability of getting three heads?
A bag has ((x + 1)) red, ((x + 4)) green and ((x + 7)) yellow balls. Find the probability of taking, without replacement, out 2 red, 2 green and 1 yell...
- Find the probability of selecting a King or a Jack from a well shuffled deck of cards.
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