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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

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

-OH

H+

both a and b

covalent bond

2 / 61

Hook worm larvae enter the body through __________

Food

water

Skin

All of them

3 / 61

Which disease is caused by polluted water?

Diarrhea

Typhoid

All of them

Cholera

4 / 61

Inland water includes _________________

River

All of them

Lakes

Streams

5 / 61

Temporary hardness is because of______________

Ca(HCO3)2

CaCO3

MgCO3

MgSO4

6 / 61

Chemical formula of hypochlorous acid is __________

HCl

H2CO3

HOCI

HF

7 / 61

The percentage of oceans in world water is _______

67%

25%

97%

50%

8 / 61

Industrial effluents are highly____________

Toxic organic compounds

Heavy Metals

Inorganic Salts

All of them

9 / 61

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

Four

Two

Six

Three

10 / 61

Vibrious cholera causes _______

Cholera

Dysentery

Hepatitis

Fluorosis

11 / 61

Maximum density of water at 4°C is _______________

04gcem-3

12cm-3

02g cm-3

0l gcm-3

12 / 61

Calcium carbonate is in water _________

None of them

soluble

Sparingly

Insoluble

13 / 61

Water dissolves non-ionic compound by ________

ion-dipole forces

hydrogen bonding

ion-ion forces

dipole-dipole forces

14 / 61

Water molecules show structure _________

Trigonal

Other

Pentagonal

Tetrahedral

15 / 61

The freezing point of water is _____________

0°C

100°C

46°C

10°C

16 / 61

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

Jaundice

Cholera

Dysentery

Typhoid

17 / 61

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

surface tension

excellent solvent action

specific heat capacity

capillary action

18 / 61

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

Fishes

All of them

Salts

Algae

19 / 61

Water has a maximum density at __________

100°C

10°C

4°C

0°C

20 / 61

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

Typhoid

Dysentery

Cholera

Jaundice

21 / 61

Which one of the following diseases causes liver inflammation?

Cholera

Typhoid

Hepatitis

Jaundice

22 / 61

The heat capacity of water is _____________

3.2Jg-1k-1

2.1 Jg-1k-1

5.9Jg-1k-1

4.2 Jg-1k-1

23 / 61

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

Two

Four

One

Three

24 / 61

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

Sulphate salts

biodegradation of aquatic plants

Decaying of aquatic plants

phosphate slats

25 / 61

Chemical form of gypsum___________

MgSO4. 5H2O

CaSO4. 2H2O

CuSO4. 5H2O

FeSO4. 5H2O

26 / 61

Gypsum in water is ____________

Insoluble

Highly soluble

None of them

Sparingly soluble

27 / 61

Acute cadmium poisoning causes __________

High Blood pressure

Kidney damage

All of them

Destruction of RBCs

28 / 61

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

Oxygen

None of them

Both of them

Carbon dioxide

29 / 61

Which is not a heavy metal?

Mercury

Cadmium

Lead

Zinc

30 / 61

Which hepatitis is caused by contaminated water?

Hepatitis B

Hepatitis C

Hepatitis D

Hepatitis A

31 / 61

Example of pest is___________

Herbs

Weeds

all of them

Insects

32 / 61

Temporary hardness is removed by adding _____________

lime stone

quick lime

slaked lime

lime water

33 / 61

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

Photosynthesis

Respiration

Capillary action

Surface tension

34 / 61

Hookworm infects ___________

small intestine

Large intestine

Stomach

Liver

35 / 61

Permanent hardness is removed by adding__________

soda lime

quick lime

lime water

Na2 Zeolite

36 / 61

Temporary hardness in water can be removed by ___________

Boiling Method

Using Sodium Zeolite

Using washing soda

All of them

37 / 61

Hard water can cause____________

Stomach disorder

Boiler blasts

All of them

Inefficiency of engine

38 / 61

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

NaCO3

CaSO

NaHCO3

Ca(HCO3)2

39 / 61

Which of the following salt is soluble in water?

Na2SO4

NaCl

KCl

All of Them

40 / 61

Neurological damage is caused by the poisoning of__________

All of them

Cadmium

Lead

Mercury

41 / 61

Which element protects teeth from decay?

Sodium

Potassium

Calcium

Fluorine

42 / 61

Sodium zeolite is naturally occurring reason of___________

Na2SiO3

NaAl(SiO3)2

Na2CO3

CaCO3

43 / 61

Which element do not cause toxicity in water?

Mercury

Sodium

Arsenic

Lead

44 / 61

The boiling point of water is ____________

25°C

0°C

100°C

4°C

45 / 61

Swimming pools are cleaned by the process________

None of these

Chlorination

Saponification

Hydrogenations

46 / 61

Temporary hardness is due to the presence of bicarbonates of __________

Magnesium

Calcium

Both of them

None of them

47 / 61

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

Paste

None of them

Gelatin

Scum

48 / 61

Soap is the sodium salt of long chain of _____________

Amino acids

Fatty acids

None of them

Nucleotides

49 / 61

The removal of which ion causes water softening.

Na+

K+

Mg2

Li+

50 / 61

Which organ ceases to function during Jaundice?

Liver

Stomach

large intestine

Kidney

51 / 61

Specific heat capacity of water is _____________

2.4 Kjg-1K-1

4.2 Jg-1K-1

2.4 Jg-1K-1

4.2 kJg-1K-1

52 / 61

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

All of them

Phosphate

Sodium

Calcium

53 / 61

Which of the following is insoluble in water?

NaCl

All of them

KCl

Benzene

54 / 61

Which of the following is soluble in water?

All of them

Glucose

Alcohols

Organic acids

55 / 61

The percentage of water in human body is_____

70%

60%

40%

50%

56 / 61

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

Carbonate salts

Phosphate salts

Sulphate salts

Sulphoric acid salts

57 / 61

Acute lead poisoning causes dysfunction of_____________

liver

Kidney

All of them

CNS

58 / 61

Water which produces good lather with soap is called __________

Hard water

Heavy water

None

Soft water

59 / 61

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

Iodine

Fluorine

Chlorine

Bromine

60 / 61

The percentage of potable water on earth is____________

0.2%

0.002%

0.02%

2%

61 / 61

Chemical formula of lime stone is _____________

CaCO3

All of them

CaO

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