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	Water molecule show structure.	Tetrahedral Trigonal Pentagonal All of them
2	One H₂O molecule can form hydrogen bonding with how many other H₂O molecules?	One Two Three Four
3	Which of the following in insoluble in water.	Benzene NaCl KCl All of them
4	Which of the following salt is soluble in water.	NaCl KCl Na<sub>2</sub>SO<sub>4</sub> All of them
5	The process by which water rises up from the roots of plants to leaves is called.	Photosynthesis Respiration Surface tension Capillary action
6	How many times the heat capacity of water is greater than that of rocks.	Two Three Four Six
7	Water has a maximum density at 4 ^oC	12 cm<sup>-3</sup> 2 g cm<sup>-3</sup> 1 g cm<sup>-3</sup> 4 gcm<sup>-3</sup>
8	The heat capacity of water is.	4.2 Jg<sup>-1</sup> K<sup>-1</sup> 2.1 Jg<sup>-1</sup>K<sup>-1</sup> 3.2 Jg<sup>-1</sup>K<sup>-1</sup> 5.9 Jg<sup>-1</sup>K<sup>-1</sup>
9	Water has a maximum density at .	10<sup>o</sup>C 0<sup>o</sup>C 4<sup>o</sup>C 100<sup>o</sup>C
10	The boiling point of water is.	100<sup>o</sup>C 4<sup>o</sup>C 0<sup>o</sup>C 25<sup>o</sup>C
11	The freezing point of water is:	10 <sup>o</sup>C 100<sup>o</sup>C 0<sup>o</sup>C 46<sup>o</sup>C
12	The percentage of potable water on earth is.	2% 0.2% 0.02% 0.002%