10th class Chemistry chapter 15 online mcq test with answers for matric part 2 chemistry unit 15(Water Preparation)

Chemistry 10th Class English Medium Unit 15 Online Test

Sr. #	Questions	Answers Choice
1	soap is the sodium salt of long chain.	Amino acids Fatty acids Nucleotides None of them
2	Hard water can cause.	Stomach disorder Boiler blasts Inefficiency of engine All of them
3	Sodium zeolite is naturally occurring reason of .	NaAl (SiO<sub>3</sub>)<sub>2</sub> Na<sub>2</sub>CO<sub>3</sub> CaCO<sub>3</sub> Na<sub>2</sub>SIO<sub>3</sub>
4	Temporary hardness in water can he removed by.	Boiling Method Using washing soda Using sodium zeolite All of them
5	Calcium carbonate is in water.	Insoluble Sparingly None of them Soluble
6	the removal of which ion causes water softening.	Na<sup>+</sup> Mg<sup>2</sup> Li<sup>+</sup> K<sup>+</sup>
7	Temporary hardness is due to the presence of bicarbonates of.	Calcium Magnsium Both of them None of them
8	Gypsum in water is.	Sparingly soluble Insoluble Highly soluble None of them
9	Chemical form of gypsum.	MgSO<sub>4</sub>. 5H<sub>2</sub>O CaSO<sub>4</sub>. 2H<sub>2</sub>O FeSO<sub>4</sub>. 5H<sub>2</sub>O CuSO<sub>4</sub>. 5H<sub>2</sub>O
10	Water which produces good lather with soap is called.	Soft water Hard water Heavy water All of them
11	Which of the following in soluble in water.	Organic acids Glucose Alcohal All of them
12	Some organic compound are soluble in water due to the presence of .	-OH H<sup>+</sup> Botha a and b Covalent bond