Uses of alkali and alkaline earth metals - class-XI
Description: uses of alkali and alkaline earth metals | |
Number of Questions: 17 | |
Created by: Akash Patil | |
Tags: s-block elements chemistry the s-block elements elements of group 1 and group 2 the s-block elements (alkali and alkaline earth metals) |
$MCrO _{4(s)}\overset{CH _{3}COOH(aq)}{\rightarrow}MCrO _{4}$ ( Suspension) above change is correct for which metal ion (s) ?
Which is the major constituent of gun powder?
The common name, "cream of tartar" refers to :
$Sr^{2+}$ forms a very unstable complex with $NO _{3-}$. A solution that was $0.001 M - Sr(ClO _{4}) _{2}$ and $0.05 M - KNO _{3}$ was found to have only $75$% of its strontium in the uncomplexed $Sr^{2+}$ form, the balance being $Sr(NO _{3})^{+}$. What is $K _{f}$ for complexation?
Potash alum is represented by the formula :
$KO _2$ (potassium superoxide) is used in oxygen cylinders in space and submarines because, it :
In the reaction : $K _4[Fe(CN) _6] + K _2CO _3\rightarrow $ the product formed is :
${K} _{2}C{S} _{3}$ can be called potassium :
The material used in photoelectric cells contains:
Metallic sodium is used as a drying agent for :
Read the assertion and reason carefully and answer the question on the basis of the following options. You have to select the one that best describes the two statements.
Reason: Potassium and caesium emit electrons on exposure to light.
At night when the lights of a scooter or a car fall on a road-sign or on a vehicle moving ahead, the painted letters or numbers shine with a glow. Which of the following is a luminous paint?
A metal salt solution forms a yellow precipitate with potassium chromate in acetic acid, a white precipitate with dilute sulphuric acid but does not give precipitate with sodium chloride or iodide. The white precipitate obtained when sodium carbonate is added to the metal salt solution will consist of:
Beautiful colours of fireworks are produced by adding salts of various metals into the burning mixture. The firework colours of different metals are mentioned here. Pick the false one.
Sparkling red colour after the blast of fire crackers is due to the presence of:
Cancer is a disease where body cells grow unchecked. A protein found in the body interferes with the growth of cancer cells. It is used for the treatment of cancer. Identify it.
Which of the following product is obtained when bleaching powder is distilled with acetone?