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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

Which of the following is soluble in water?

Glucose

Organic acids

All of them

Alcohols

2 / 61

Sodium zeolite is naturally occurring reason of___________

NaAl(SiO3)2

CaCO3

Na2SiO3

Na2CO3

3 / 61

Water has a maximum density at __________

10°C

0°C

100°C

4°C

4 / 61

Which organ ceases to function during Jaundice?

large intestine

Stomach

Kidney

Liver

5 / 61

Hard water can cause____________

Boiler blasts

Inefficiency of engine

All of them

Stomach disorder

6 / 61

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

Two

Four

Three

Six

7 / 61

Hook worm larvae enter the body through __________

Food

All of them

water

Skin

8 / 61

Maximum density of water at 4°C is _______________

02g cm-3

0l gcm-3

04gcem-3

12cm-3

9 / 61

Temporary hardness is due to the presence of bicarbonates of __________

Calcium

Both of them

None of them

Magnesium

10 / 61

The heat capacity of water is _____________

3.2Jg-1k-1

4.2 Jg-1k-1

5.9Jg-1k-1

2.1 Jg-1k-1

11 / 61

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

Typhoid

Cholera

Dysentery

Jaundice

12 / 61

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

Jaundice

Cholera

Dysentery

Typhoid

13 / 61

Which element protects teeth from decay?

Sodium

Potassium

Calcium

Fluorine

14 / 61

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

biodegradation of aquatic plants

phosphate slats

Sulphate salts

Decaying of aquatic plants

15 / 61

The percentage of water in human body is_____

70%

40%

50%

60%

16 / 61

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

Ca(HCO3)2

NaHCO3

CaSO

NaCO3

17 / 61

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

Paste

None of them

Scum

Gelatin

18 / 61

Vibrious cholera causes _______

Fluorosis

Dysentery

Hepatitis

Cholera

19 / 61

Industrial effluents are highly____________

Toxic organic compounds

Inorganic Salts

All of them

Heavy Metals

20 / 61

Neurological damage is caused by the poisoning of__________

Lead

Mercury

All of them

Cadmium

21 / 61

Specific heat capacity of water is _____________

2.4 Kjg-1K-1

2.4 Jg-1K-1

4.2 Jg-1K-1

4.2 kJg-1K-1

22 / 61

The boiling point of water is ____________

100°C

0°C

4°C

25°C

23 / 61

Which element do not cause toxicity in water?

Sodium

Lead

Mercury

Arsenic

24 / 61

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

Four

One

Three

Two

25 / 61

Which disease is caused by polluted water?

Cholera

Diarrhea

All of them

Typhoid

26 / 61

Gypsum in water is ____________

Insoluble

Sparingly soluble

Highly soluble

None of them

27 / 61

The removal of which ion causes water softening.

Na+

K+

Li+

Mg2

28 / 61

Chemical formula of lime stone is _____________

CaO

CaCO3

Ca(OH)2

All of them

29 / 61

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

All of them

Sodium

Calcium

Phosphate

30 / 61

Acute lead poisoning causes dysfunction of_____________

All of them

CNS

liver

Kidney

31 / 61

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

Bromine

Iodine

Chlorine

Fluorine

32 / 61

The percentage of oceans in world water is _______

50%

67%

97%

25%

33 / 61

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

both a and b

covalent bond

-OH

H+

34 / 61

Which one of the following diseases causes liver inflammation?

Jaundice

Hepatitis

Cholera

Typhoid

35 / 61

Chemical form of gypsum___________

CaSO4. 2H2O

MgSO4. 5H2O

CuSO4. 5H2O

FeSO4. 5H2O

36 / 61

Water which produces good lather with soap is called __________

None

Hard water

Heavy water

Soft water

37 / 61

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

Photosynthesis

Respiration

Capillary action

Surface tension

38 / 61

Water molecules show structure _________

Pentagonal

Other

Trigonal

Tetrahedral

39 / 61

Temporary hardness in water can be removed by ___________

All of them

Boiling Method

Using washing soda

Using Sodium Zeolite

40 / 61

Inland water includes _________________

River

Streams

Lakes

All of them

41 / 61

Hookworm infects ___________

Large intestine

Stomach

Liver

small intestine

42 / 61

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

All of them

Algae

Salts

Fishes

43 / 61

The freezing point of water is _____________

46°C

0°C

10°C

100°C

44 / 61

Swimming pools are cleaned by the process________

Hydrogenations

Saponification

None of these

Chlorination

45 / 61

Temporary hardness is because of______________

CaCO3

MgSO4

Ca(HCO3)2

MgCO3

46 / 61

The percentage of potable water on earth is____________

0.002%

2%

0.2%

0.02%

47 / 61

Which hepatitis is caused by contaminated water?

Hepatitis D

Hepatitis B

Hepatitis A

Hepatitis C

48 / 61

Water dissolves non-ionic compound by ________

ion-dipole forces

ion-ion forces

hydrogen bonding

dipole-dipole forces

49 / 61

Chemical formula of hypochlorous acid is __________

HF

HCl

H2CO3

HOCI

50 / 61

Soap is the sodium salt of long chain of _____________

Nucleotides

Fatty acids

None of them

Amino acids

51 / 61

Acute cadmium poisoning causes __________

Kidney damage

High Blood pressure

All of them

Destruction of RBCs

52 / 61

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

surface tension

specific heat capacity

excellent solvent action

capillary action

53 / 61

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

Oxygen

Both of them

None of them

Carbon dioxide

54 / 61

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

Carbonate salts

Sulphate salts

Sulphoric acid salts

Phosphate salts

55 / 61

Which of the following is insoluble in water?

KCl

All of them

NaCl

Benzene

56 / 61

Calcium carbonate is in water _________

None of them

Sparingly

Insoluble

soluble

57 / 61

Temporary hardness is removed by adding _____________

lime stone

slaked lime

lime water

quick lime

58 / 61

Permanent hardness is removed by adding__________

soda lime

lime water

Na2 Zeolite

quick lime

59 / 61

Example of pest is___________

Insects

all of them

Weeds

Herbs

60 / 61

Which of the following salt is soluble in water?

Na2SO4

All of Them

KCl

NaCl

61 / 61

Which is not a heavy metal?

Mercury

Cadmium

Zinc

Lead

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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