List of practice Questions

The correct set of four quantum number values for the valence electron of sodium atom is
The impurities present in the ore is called as
Which of the following is used as a flux in the smelting of Haematite?
Potassium and Calcium belongs to
Which of the following is an ore of Iron ?
In electrolytic refining of metals, the pure metal is taken as
The reaction that takes place in Thermite process is
What does the symbol '∆' represent in a chemical equation ?
The product formed when quick lime reacts with water is
Placenta is formed at around______weeks of pregnancy.
Who discovered Mitosis ?
In plants, the fusion of male gamete with secondary nucleus results in
In majority of flowering plants, how many cells are present in an embryo sac ?
The alkaloid used as medicine for snake bite is
The hormone responsible for phototropism in plants is
There are_____ number of cranial nerves in human being.
Nerves that carry impulses from sense organ to brain or spinal cord are
A person has loss of control on emotions. Which part of brain must have stopped functioning ?
The most Poisonous of all waste products of metabolism is
Which experiment proves that oxygen is evolved by plants during photosynthesis?
Which of the following pairs is matched correctly ?
Which cell organelle in a plant cell participates in photosynthesis
Which of the following is the correct flow chart of human digestive system ?
The Origin of Species was written by
Which part of our eye is responsible for image formation?