Question
Phenol reacts with zinc dust
gives:Solution
When phenol is distilled with Zn-dust, it gives benzene. it is an example of reduction. Phenol loses one O atom.
Average weight of Shikhar, Rohit and Virat is 72 kg. Hardik joins the group and the average now becomes 65 kg. If Dhoni whose weight is 8 kg more than ...
The average age of three children is 21 years. If their ages are in the ratio 3:5:6. Find the age of the youngest child.
The average age of 22 girls is 40 years. If the age of two more girls is added the average decreases by 2.5 years. What is the sum of the age of new girls?
There are only 220 students living in hostel. If 20 students left hostel, then overall expenditure of mess is reduced by Rs. 800 weekly but per student ...
While tabulation of marks scored in an examination by the students of a class, by mistake the marks scored by one student got recorded as 93 in place o...
The average of the first 6 numbers is 'x+40', the average of the next 8 numbers is 'x', and the average of the remaining 6 numbers is 'x−10'. If the a...
In a school with 400 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
- The Average income of Akash and Bittu is Rs. 31,000. Akash earns Rs. (p + 5000), while Chirag earns Rs. (2.5p + 500). Given that the average income of Bitt...
In 40 matches, Mia had a bowling average of 18.6. She played 3 more matches, took 3 wickets after conceding 162 runs, and her average increased by 1.8. ...
In a school, the average number of books that some numbers of boys have is 80 and average number of books that some numbers of girls have is 50. If each...
