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If you are looking for Chemistry Notes for Class 10 Chapter-15 then you are on right place, and have found the your required Notes for Chemistry. on this post you can find the all type Notes & Solution for chemistry class 10 problems. so read this post and take benefits for your studies and share with your Friends.

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Chemistry Ch#15, 10th Class

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1 / 61

Inland water includes _________________

River

Lakes

Streams

All of them

2 / 61

Which element protects teeth from decay?

Calcium

Fluorine

Potassium

Sodium

3 / 61

Which of the following is soluble in water?

All of them

Organic acids

Glucose

Alcohols

4 / 61

Temporary hardness is because of______________

MgCO3

Ca(HCO3)2

CaCO3

MgSO4

5 / 61

Which element do not cause toxicity in water?

Mercury

Lead

Sodium

Arsenic

6 / 61

Maximum density of water at 4°C is _______________

0l gcm-3

02g cm-3

12cm-3

04gcem-3

7 / 61

The freezing point of water is _____________

10°C

100°C

46°C

0°C

8 / 61

Gypsum in water is ____________

Insoluble

Sparingly soluble

None of them

Highly soluble

9 / 61

The salts of which element are present in detergent that causes the rapid growth of algae in water bodies is _________

Calcium

All of them

Phosphate

Sodium

10 / 61

Chemical form of gypsum___________

CaSO4. 2H2O

CuSO4. 5H2O

MgSO4. 5H2O

FeSO4. 5H2O

11 / 61

Permanent hardness is removed by adding__________

soda lime

quick lime

Na2 Zeolite

lime water

12 / 61

Which one of the properties of water is responsible for rising of water plants?

surface tension

excellent solvent action

capillary action

specific heat capacity

13 / 61

The percentage of water in human body is_____

40%

70%

60%

50%

14 / 61

Industrial effluents are highly____________

Heavy Metals

All of them

Inorganic Salts

Toxic organic compounds

15 / 61

Which of the following is insoluble in water?

NaCl

Benzene

KCl

All of them

16 / 61

Sea water is unfit for drinking purpose due to the presence of ____________

All of them

Algae

Salts

Fishes

17 / 61

How many times the heat capacity of water is greater than that of rocks.

Two

Three

Four

Six

18 / 61

Acute lead poisoning causes dysfunction of_____________

CNS

liver

Kidney

All of them

19 / 61

Which one of the following salts makes the water permanently hard?

Ca(HCO3)2

CaSO

NaHCO3

NaCO3

20 / 61

Hookworm infects ___________

Stomach

small intestine

Liver

Large intestine

21 / 61

Rapid growth of algae in water bodies is because of detergent having __________

Carbonate salts

Phosphate salts

Sulphoric acid salts

Sulphate salts

22 / 61

Acute cadmium poisoning causes __________

High Blood pressure

Kidney damage

All of them

Destruction of RBCs

23 / 61

The depletion of which gas results in the death of aquatic life.

Carbon dioxide

Both of them

Oxygen

None of them

24 / 61

The process by which water rises up from the roots of plants to leaves is called ______________

Photosynthesis

Surface tension

Capillary action

Respiration

25 / 61

Temporary hardness is due to the presence of bicarbonates of __________

Calcium

Magnesium

Both of them

None of them

26 / 61

Which organ ceases to function during Jaundice?

large intestine

Liver

Kidney

Stomach

27 / 61

The percentage of potable water on earth is____________

2%

0.02%

0.2%

0.002%

28 / 61

Which of the following salt is soluble in water?

NaCl

All of Them

KCl

Na2SO4

29 / 61

Which one of the following diseases causes severe diarrhea and can be fatal?

Dysentery

Typhoid

Cholera

Jaundice

30 / 61

Mg²⁺ and Ca²⁺ ions react with soap to form calcium and magnesium salts of fatty acids called ___

Paste

None of them

Scum

Gelatin

31 / 61

Which hepatitis is caused by contaminated water?

Hepatitis C

Hepatitis B

Hepatitis D

Hepatitis A

32 / 61

Swimming pools are cleaned by the process________

Hydrogenations

None of these

Saponification

Chlorination

33 / 61

Which disease is caused by polluted water?

Typhoid

Diarrhea

Cholera

All of them

34 / 61

Which one of the followings is not a reason of depletion of O₂ from water_________?

Decaying of aquatic plants

Sulphate salts

biodegradation of aquatic plants

phosphate slats

35 / 61

Water which produces good lather with soap is called __________

None

Heavy water

Soft water

Hard water

36 / 61

The removal of which ion causes water softening.

Li+

K+

Mg2

Na+

37 / 61

Neurological damage is caused by the poisoning of__________

Mercury

Lead

All of them

Cadmium

38 / 61

Soap is the sodium salt of long chain of _____________

None of them

Fatty acids

Nucleotides

Amino acids

39 / 61

Water dissolves non-ionic compound by ________

hydrogen bonding

ion-ion forces

ion-dipole forces

dipole-dipole forces

40 / 61

Example of pest is___________

Weeds

all of them

Insects

Herbs

41 / 61

The boiling point of water is ____________

4°C

0°C

25°C

100°C

42 / 61

Calcium carbonate is in water _________

Insoluble

Sparingly

None of them

soluble

43 / 61

Temporary hardness in water can be removed by ___________

Using Sodium Zeolite

All of them

Using washing soda

Boiling Method

44 / 61

Water molecules show structure _________

Tetrahedral

Pentagonal

Other

Trigonal

45 / 61

Specific heat capacity of water is _____________

4.2 Jg-1K-1

2.4 Kjg-1K-1

2.4 Jg-1K-1

4.2 kJg-1K-1

46 / 61

Sodium zeolite is naturally occurring reason of___________

NaAl(SiO3)2

Na2CO3

CaCO3

Na2SiO3

47 / 61

One H₂O molecule can form hydrogen bonding with how many other H₂O molecules?

Four

Two

One

Three

48 / 61

Which is not a heavy metal?

Lead

Cadmium

Mercury

Zinc

49 / 61

Which one of the following gases is used to destroy harmful bacteria in water?

Chlorine

Bromine

Fluorine

Iodine

50 / 61

Water has a maximum density at __________

10°C

100°C

4°C

0°C

51 / 61

Hard water can cause____________

All of them

Inefficiency of engine

Boiler blasts

Stomach disorder

52 / 61

Temporary hardness is removed by adding _____________

lime stone

quick lime

lime water

slaked lime

53 / 61

Chemical formula of hypochlorous acid is __________

H2CO3

HF

HOCI

HCl

54 / 61

Some organic compounds are soluble in water due to the presence of __________

-OH

covalent bond

both a and b

H+

55 / 61

The heat capacity of water is _____________

4.2 Jg-1k-1

5.9Jg-1k-1

3.2Jg-1k-1

2.1 Jg-1k-1

56 / 61

Which one of the following diseases causes liver inflammation?

Cholera

Typhoid

Hepatitis

Jaundice

57 / 61

A disease is caused by excess of bile pigments in the blood is

Cholera

Typhoid

Dysentery

Jaundice

58 / 61

Vibrious cholera causes _______

Hepatitis

Fluorosis

Dysentery

Cholera

59 / 61

The percentage of oceans in world water is _______

50%

67%

97%

25%

60 / 61

Hook worm larvae enter the body through __________

Skin

water

All of them

Food

61 / 61

Chemical formula of lime stone is _____________

CaO

All of them

CaCO3

Ca(OH)2

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Chemistry Notes, Solved Problems for Class 10th

Chemistry, a new subject for 10th Class, having a lot of concepts, starting from a single definition of the smallest particle of our universe which is called ‘atom’. In the 8th grade usually, we have studied only one book of science that combines chemistry, physics, and biology. But as, now we got into 9th & 10th class and with every passing day things starts to get more complex now. similarly we got three books instead of just one science book.

And, if you any student of 10th Class feeling difficult to understand the concept of chemistry. Then, these chemistry notes for class 10 are enough, by Understanding chemistry Notes for 10th class means remembering a lot of concepts. Consider that particular subject important in which you want to study for your whole life. And, read more than just the textbook about that particular subject. If you think you want to study chemistry for your whole life that’s great, our country also need chemists.

Conceptual Questions Chemistry class 10 pdf

If any student searching to topics like Chemistry Notes for 10^th class,  Chemistry Notes for Class 10 pdf, Chemistry Notes for Class 10 MCQs, Chemistry Notes for class 10 Gujranwala board, Chemistry Notes for class 10 Lahore board, Class 10 Chemistry notes chapter 15, Chemistry class 10 chapter 12 pdf, Chemistry class 10 chapter-15 short questions, Chemistry class 10 chapter-15 solved exercise pdf, Chemistry Notes for Class 10 Chapter-15, 10^th class chemistry notes in Urdu pdf download, Chemistry class 10 pdf, then all the solution if your problem is available within our website eStudent.pk

Chapter wise PDF Notes / Problems / Solution of Chemistry 10th Class

                     Chapter-09 (01) – Chemical Equilibrium

                     Chapter-10 (02) – Acids, Bases & Salts

                     Chapter-11 (03) – Organic Chemistry

                     Chapter-12 (04) – Hydrocarbons

                     Chapter-13 (05) – Biochemistry

                     Chapter-14 (06) – The Atmosphere

                     Chapter-15 (07) – Water

                     Chapter-16 (08) – Chemical Industries

                     Pairing Scheme for 2021 – Chemistry 10th Class