Farmers neutralize the effect of acidity on soil by adding

Cuso4.5H20 in this compound the water molecules is called

Which salt is acidic in nature

What is the perctange of the oxygen in the expired air when a person is resting

The opening and closing of the stomatal pore depends upon

Which acid is present in termarid

Which of the following are present bin a dilute aqueous solution of hydrochloric acid

A beam of light incident on a plane mirror from a real image on reflection the incident beam is

Image formed by convex spherical mirror is

Plan store food in the form

Which of the following salt does not contain water of crystallization

At what temperature is gypsm heated to form plaster of paris

The respiratory pigment in humane beings

A full length of image of a distant tall building can definitely be seen using

The least resistance obtained by using 2 ohm 4 ohm 1 ohm and 100 ohm

Electrical resistivity of a given metallic wire depends upon

Unit of electric power may also be expressed as

Two bulbs are rated 40 w , 220 w and 60 w, 220 w the ratio of there resistance will be