Question
If AB is a chord of a circle with radius 5 units and C
is a point on the circle such that ∠ACB =  π/2, then the length of chord AB is:Solution
The correct answer is C
The chemical name of'Common salt’
The nucleus of an atom consists of-
One of the constituents of tear gas is
The acid used in lead storage cells is-
Which of the following is a physical change?
The pH of a neutral solution is —Â
Manganite is an ore/mineral of
The gas usually causing explosions in coal mines is-
Milk tastes sour when kept in the open for sometimes due to the formation of-
Which one amongst the following is not a Green House gas?