The s-block elements of the Periodic Table have only
The general electronic configuration of ns2 exists in:
1 Crore+ students have signed up on EduRev. Have you? Download the App |
In the preparation of Sodium carbonate the by- product formed is:
Heating a pulverised mixture of limestone and clay in a rotary kiln is used in the manufacture of:
Group I of the periodic Table consists of the elements collectively known as
The alkali metals and their salts impart characteristic colour to an oxidizing flame because:
Cement is an industrially important compound of
Suspension of slaked lime in water is known as
Group Il of the periodic table with one exception consists of the elements collectively known as
The alkali metals are low melting. Which of the following alkali metal is expected? to melt if the room temperature rises to 30∘C?
Which of the following elements does not form hydride by direct heating with dihydrogen?
One of the following is not called alkaline earth metal.
The electronic configuration of 7s1 belongs to
Alkali metals react with water vigorously to form hydroxides and dihydrogen.Which of the following alkali metals reacts with water least vigorously?
A substance which gives brick red flame and breaks down on heating to give oxygen and a brown gas is
Calcium and Magnesium belong to the category of
The alkali metals burn vigorously in oxygen forming oxides. Hence, potassium forms
The reducing power of a metal depends oh various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.
Which of the following statements is true about Ca(OH)2?