Copper II Sulphate

Q.

By adding a small amount of KMnO₄ to concentrated H₂SO₄, a green oily compound is obtained, which is highly explosive in nature. Identify the compound from the following options.

1. MnO₂

2. MnSO₄

3. Mn₂O₃

4. Mn₂O₇

Q. The electrovalency of magnesium in magnesium chloride is _______.

1. 1
2. 2
3. 3
4. \N

Q. The types of bonds present in $CuS{O}_4.5H_{2}O$ are only

1. Electrovalent and coordinate covalent
2. Electrovalent and covalent
3. Electrovalent, covalent, and coordinate covalent
4. Covalent and coordinate covalent

Q. $2CuS{O}_4+K_4\left[Fe\right(CN{)}_6]⟶A+2K_{2}S{O}_4.A$ is

1. $C{u}_2\left[Fe\right(CN{)}_6]$
2. None of the above
3. $C{u}_2\left[Fe\right(CN{)}_4]$
4. $Cu\left[Fe\right(CN)z-6]$

Q. The colour of light absorbed by an aqueous solution of $CuS{O}_4$ is

1. Orange red
2. Blue green
3. Yellow
4. Violet

Q. $2CuS{O}_4+K_4\left[Fe\right(CN{)}_6]⟶A+2K_{2}S{O}_4.A$ is

1. None of the above
2. $C{u}_2\left[Fe\right(CN{)}_6]$
3. $C{u}_2\left[Fe\right(CN{)}_4]$
4. $Cu\left[Fe\right(CN)z-6]$