Questions

* is a dereference operator & is a reference operator. They can be applied any number of times provided it is meaningful. Here p points to the first character in the string "Hello". *p dereferences it and so its value is H. Again & references it to an address and * dereferences it to the value H

The given words to be placed in a logical sequence. Here if you want to swith on a light or fan in a room, the sequence you follow must be like

Key,

Lock ,

Door,

Room, Swith on.

Take the key and open the lock of a door in a room and then swith on.

Chinaman bowling is left-arm unorthodox spin, where the bowler spins the ball into a right-handed batsman. Leg spinner Kuldeep Yadav, who debuted in the Dharamsala Test against Australia, has become the first-ever men’s Chinaman bowler to represent India.

The IUPAC name of the compound is Methyl Acetylene or Propyne.

Magnetic disk is a kind of data storage device. Storage capacity of magnetic disk depends on 

1. tracks per inch of surface

2. bits per inch of tracks

3. disk pack in disk surface

It can be shown as ::