Which three states celebrate statehood day on January 21?
The correct answer is B
Modern periodic table has ______ groups and ______ periods.
Which of the following statement is/are true?
I. Atomic radius increases in moving from left to right along a period.
II. Atomic size...
_________is a formula for rust.
The force of attraction between the particles of matter is maximum in______.
Which of the following relation is correct?
_______ is a common name of ethanoic acid.
Which of the following pair of element – atomicity is correct?
I. Helium – monoatomic
II. Oxygen – triatomic
The insecticide gammexane is chemically known as:
The word “acid” comes from a ________ word.
Magnesium has atomic number as 12. Find out its valiancy.