Which of the following statements is false?
 

1.	Ca2+ ions are important in blood clotting
2.	Ca2+ ions are not important in maintaining the regular beating of the heart
3.	Mg2+ ions are important in the green parts of plants
4.	Mg2+ ions form a complex with ATP

The product obtained as a result of a reaction of nitrogen with CaC₂ is:

1. CaCN
2. CaCN₃
3. Ca₂CN
4. CaCN₂

The most acidic oxide among the following is - 
1. MgO
2. BeO
3. BaO
4. CaO

The suspension of slaked lime in water is known as:
1. lime water
2. quick lime
3. milk of lime
4. washing of lime

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?
1. K
2. Rb
3. Li
4. Na

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.