The correct statement among the following regarding CsBr₃ is -

1. It is a covalent compound.

2. It contains Cs²⁺ and Br^- ions.

3. It contains Cs⁺, Br^- and Br₂ lattice molecules.

4. It contains Cs⁺ and ${\mathrm{Br}}_3^{-}$ ions.

The byproduct of the Solvay process is:

1. CO₂

2. NH₃

3. CaCl₂

4. CaCO₃

Baking soda or baking powder is:

1. Washing soda

2. Caustic soda

3. Soda ash

4. Sodium bicarbonate

The formula of washing soda is:

1. Na₂CO₃

2. Na₂CO₃.H₂O

3. Na₂CO₃.7H₂O

4. Na₂CO₃.10H₂O

The suspension of slaked lime in water is known as -

1. Limewater.

2. Quicklime.

3. Milk of lime.

4. Aqueous solution of slaked lime.

The incorrect statement among the following regarding Beryllium is-

1. It is rendered passive by nitric acid.

2. lt forms Be₂C

3. It's salts rarely hydrolyze.

4. It's hydride is electron-deficient and polymeric.

A compound that releases CO₂ most easily upon heating is -

1. K₂CO₃                                 

2. Na₂CO₃

3. MgCO₃                                 

4. CaCO₃

An active ingredient in bleaching powder for bleaching action is -

1. Ca(OCl)₂             

2. CaO₂Cl

3. CaCl₂                 

4. CaOCl₂

An alkaline earth metal sulphate that has hydration enthalpy higher than the lattice enthalpy is -

1. CaSO₄               

2. BeSO₄

3. BaSO₄               

4. SrSO₄

The effect of addion of gypsum to cement is-

1. It reduces the setting time of cement .    

2. The setting time of cement increases.

3. The colour of cement becomes light .          

4. A shining surface is obtained.