Given, when a natural number 'n' is divided by 4, the remainder is 3. Let the number be 7 (condition satisfied) Now, =(2n + 3) = (2 x 7 + 3) = 14 + 3 = 17 When 17 is divided by 4, then remainder will be 1
Which of the following is the richest source of phosphorus?
Cinnabar is an ore of which metal?
Hydrogen was discovered by:
What are proteins chemically composed of?
Gunpowder consists of a mixture of:
The rate of evaporation increases with ______.
Which mineral is the ore Of aluminium ?
Radon, used in radiotherapy, belongs to which group on the periodic table?
Which chemical compound is used in the indelible ink for elections?
Identify the element that is NOT a metalloid.
