Answer:
the correct answer is c, how easily something catches flames
Answer:
d , before the molten rock becomes lava, it is first magma, and most people know that lava is ejected from volcanoes
Halogens and Alkali react aggressively.
More the no. of hydrogen ions more is the solution acidic.
pH means the power of hydrogen that determines the concentration of hydrogen ions or the level of acidiy or basicity of a solution.
so more the hydrogen ions more will be the Power of Hydrogen (pH) and thus more wil be the acidity.
