Which one of the following is the longest river in Asia which passes through major part of East Asia?
The Yangtze River is 6,300 km long, the longest river in Asia and the third longest in the world.
Which of the following is an example of a colloidal solution?
Why is commercial nitric acid typically yellow or brown in color?
Which of the following statement is/are true?
I. Atomic radius increases in moving from left to right along a period.
II. Atomic size...
Which is the best fire-extinguisher?
Which of the following is an example of a heterogeneous mixture?
The process of converting a solid directly into its vapor is called:
The product of the equivalent weight and valency of an element equals its ______.
Which element is commonly used in nuclear reactors for producing electricity by nuclear fission?
The percentage of nitrogen in urea is :
What are diatoms?
