10th Class Chemistry Chapter Wise Online MCQ Test With Answers PDF English Medium

Chemistry 10th Class English Medium Online Test

Sr. #	Questions	Answers Choice
1	Which salt cause permanent hardness in water is:	Ca(HCO<sub>3</sub>)<sub>2</sub> Mg(HCO<sub>3</sub>)<sub>2</sub> CaCl<sub>2</sub> KCl
2	Salt makes the water permanently hard.	CaSO<sub>4</sub> Ca(HCO<sub>3</sub>)<sub>2</sub> NaHCO<sub>3</sub> NaCO<sub>3</sub>
3	Which one of the following salts makes the water permanent hard.	NaCO<sub>3</sub> NaHCO<sub>3</sub> Ca(HCO<sub>3</sub>)<sub>2</sub> CaSO<sub>4</sub>
4	Permanent hardness can be removed by using .	Soda lime Sodium Zeolite Quick lime Lime water
5	Temporary hardness can be removed by__________.	Quick lime Slaked lime Lime stone HCl
6	Temporary hardness is because of.	Ca(HCO<sub>3</sub>)<sub>2</sub> CaCO<sub>3</sub> MgCO<sub>3</sub> MgSO<sub>4</sub>
7	Which ion cause water hardness?	Al<sup>2</sup> Mg<sup>2</sup> Fe<sup>2</sup> Na<sup>2</sup>
8	Water dissolves Non-ionic compounds by:	Ion-Ion forces Dipole forces Dipole - Dipole forces Hydrogen Bonding
9	The bond angle between H-O-H in water is:	104.5<sup>o</sup> 104.6<sup>o</sup> 104.7<sup>o</sup> 104.8<sup>o</sup>
10	Ionic compounds are soluble in water due to:	Hydrogen bonding ion-dipole forces Dipole-dipole forces Dipole -induced dipole forces
11	Water molecule has a structure:	Ionic Non polar Tetrahedral Polar
12	A sea level the boiling point of water is.	0<sup>o</sup>C 98<sup>o</sup>C 100<sup>o</sup>C 110<sup>o</sup>C