Most important model test paper 10th class MP board exam 2022

Model test paper class 9

Most important question class 10 chapter 4 Quadratic equation

Iron (+II) is one of the most important oxidation states and salts are called ferrous salts. Most of the Fe(+II) salts are pale green and contain [Fe(H_(2)O)_(6_]^(2+) ion. Fe(+II) compounds are easily oxidised by air and so are difficult to obtain pure Fe^(2+) form many complexes like K_(4)[Fe(CN)_(6)] . Q. FeSO_(4) is used in brown ring test for nitrates and nitrites. In this test, a freshly prepared FeSO_(4) solution is mixed with solution containing NO_(2)^(-) or NO_(3)^(-) and the conc. H_(2)SO_(4) is run down the side of the test tube. It the mixture gets hot or is shaken. (I) the brown colour disappear (II)NO is evolved (III) a yellow solution in Fe_(2)(SO_(4))_(3) is formed

Translation || Past Indefinite Tense || UP Board Exam 2022

Translation || Present Indefinite Tense || UP Board Exam 2022

The most important factor which determined the increase in human population in India during the 20th century :

Important Essay Topics || UP Board Exam 2022 || Target Full Marks

Express each of the following in the language of ratios: In a class, the number of girls in the merit list of the board examination is two times that of boys. The number of students passing mathematics test is 2/3 of the number that appeared.

Rajasthan board physics model paper 2022