Tag: chemistry
Questions Related to chemistry
The reaction between a metal and a diatomic gas leads to an ionic substance. What is the formula unit of the ionic compound produced when magnesium reacts with hydrogen gas?
Which of the following is/are tue about $MgCl _2$?
Which of the following represents the use(s) of Sorel's cement?
When burned in open air, the magnesium gets hot enough to produce noticeable amounts of yellow magnesium nitride. Burning in a covered crucible that allows enough air in to support combustion will reduce the burning temperature, thus maximizing the production of the nitride.
Magnesium oxide is produced by the calcination of magnesium phosphate or magnesium sulphate by the treating magnesium chloride with lime followed by heat.
How can Calcium Suphate be produced from Calcium Fluoride?
Which of the following statement about magnesium oxide is/are correct?
Magnesium on heating in air gives $(A)$ and $(B)$. On reaction with water $(B)$ gives colourless gas $(C)$. $(C)$ when passed through $CuSO _4$ solution gives a blue coloured solution $(D)$. The blue solution is:
$MgO$ when mixed with a saturated solution of $MgCl _2$ sets to a hard mass known as 'sorel cement'. The composition of sorel cement is $MgCl _2.nMgO.xH _2O$. The value of $n$ is:
The common unit of measuring volume is _________.