Question
At pH 9.0 of alkali soil, the concentration of
OH– isSolution
In a solution at pH 9.0, the concentration of OH⁻ ions is 10–5 mole/litre, which can be calculated using the relationship pOH=14−pHpOH=14−pH and [OH−]=10−pOH[OH−]=10−pOH.
A transformer cannot work on:
When heated with chloroform, secondary amines and tertiary amines
Which of the following is a characteristic property of acids ?
Heat from the sun reaches earth by the process of –
Lines joining places of equal temperature are called
A concave lens always forms an image which is –
According to Newton’s second law of motion, the acceleration of an object is directly proportional to the
Which of the following is the correct term used to describe Graphite, Carbon and Diamonds?
What is the atomic mass of carbon?
Which one among the following statements is not true for Mammals?
