Which of the following statements is/are CORRECT? 1. A solution is a homogeneous mixture of two or more substances. 2. A solute is a mixture of a solvent and a soluble compound. 3. Aqueous solutions are solutions in which water is a solvent.

1 and 3

Explanation:

A solution can be define as a homogeneous mixture of two or more substance. It is made up of a solute and a solvent. A solution can exist in any phase be it solid, liquid or gas.

A solute is the substance that

Dissolves in a solution.

An aqueous solution is a solution in which the solvent is water.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.