Which of the following is a transition element?
A. Cl
B. Cu
C. S
D. None of these
A. Cl
B. Cu
C. S
D. None of these
		A. anthocyanin
B. Carotene
C. Xanthophylls
D. None of these
It comes in various colours ranging from white to pale yellow, orange, k and dark purple. The colour of the onion is due to the presence of anthocyanins and anthoxanthins which belong to the class of Flavonoids.
		A. Ionosphere
B. Troposphere 
C. Stratosphere
D. Mesosphere
A. A blue giant
B. Yellow draft
C. Supernova
D. None of above
		A. ADP
B. DNA
C. RNA
D. ATP
These small membrane-bound organelles are the site of nutrient breakdown and adenosine triphosphate (ATP) synthesis. ATP is a molecule sometimes referred to as the “energy currency” of a cell. It is a co-enzyme required for many of the metabolic functions of a cell.
Electron was discovered by?
A. Michael Faraday
B. James Maxwell
C. Yuri Gagarin
D. J.J Thomson