Chemistry Class 10th

361. On the basis of atmospheric variation, the number of atmospheric regions are:

A) Five

B) Two

C) Three

D) Four

362. Almost _______ of the earth is covered by water.

A) ¼

B) 1/3

C) 2/3

D) ¾

363. Water found in the ocean is in ______ form.

A) Fresh

B) Saline

C) Saline but Drinkable

D) Varies according to the region

364. Human Body is composed of ______ % water.

A) 20-30

B) 30- 40

C) 40- 50

D) 60-70

365. Human blood Plasma posses ______ water.

A) 40%

B) 55%

C) 60%

D) 92%

366. On earth, water is present in ______ forms.

A) One

B) two

C) three

D) Water is not present

367. ________ is universal solvent.

A) Benzene

B) Water

C) Grease

D) Honey

368. The most abundant resource on earth is:

A) Wood

B) Fossil Fuel

C) Water

D) Minerals

369. The estimated amount of water on earth is:

A) 1 billion Cubic Km

B) 1.33 Billion Cubic km

C) 2 Billion Cubic km

D) 3 billion Cubic km

370. The oceans contain _____ of the total water of earth.

A) 30%

B) 46%

C) 87%

D) 97%

371. Most of the freshwater is in the form of:

A) Icesheets

B) Underground Aquifers

C) Water Vapours

D) Lakes

372. The heat required to convert Solid into Liquid and Liquid into Vapor is called:

A) Direct heat

B) Melting Heat

C) Latent heat

D) None of  the above

373. Earth is the only planet that has water.

A) True

B) False

374. We excrete our body waste by the help of Urination and Sweating.

A) True

B) False

375. Running water is used to generate electricity:

A) True

B) False

376. Water is a compound of :

A) Hydrogen

B) Oxygen

C) Carbon

D) Both A and B

377. ______ was the person who discovered that water is not an element.

A) Fleming

B) Telsa

C) Marie Curie

D) Henry Cavendish

378. Composition of Water can be determined by:

A) Volume

B) Mass

C) Both A and B

D) None of the above

379. The amount of heat required to raise the temperature of 1 g of Water to 10C.

A) Latent Heat

B) Specific Heat Capacity

C) Heat Capacity

D) Direct Heat

380. Water is composed of _____ part of hydrogen to _____ parts of Oxygen by mass:

A) 1,1

B) 2,1

C) 1,8

D) 8,2