Which of the follwing alkane contains pri, sec, tert as well as quaternary C atoms?

Which of the following alkanes contain primary, secondary, tertiary and quaternary carbon atoms together

Which of the following alkanes contains primary, secondary , tertiary and quaternary carbon atoms together ?

Which of the following mineral contains calcium as well as magnesium ?

Which of the following mineral contains calcium as well as magnesium ?

Which of the following compounds contains 1^@ , 2^@ , 3^@ as well as 4^@ carbon atoms ?

Which of the follwing alkanes has the lowest melting point?

Which of the following alkanes has only primary hydrogen atoms?

Which of the follwing devices work on AC as well as DC ?