[ **रसायन विज्ञान** ] Chemistry Notes PDF in Hindi

[ **रसायन विज्ञान** ] Chemistry Notes PDF in Hindi

[ **रसायन विज्ञान** ] Chemistry Notes PDF in Hindi

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Today we are sharing an important pdf in hindi आज की हमारी यह पोस्ट [ **रसायन विज्ञान** ] Chemistry Notes PDF in Hindi बिषय से सन्बन्धित है , इस पोस्ट में हम आपको सामान्य विज्ञान ( General Science ) बिषय से संबंधित सभी प्रकार की PDF को Download करने की Link उपलब्ध कराऐंगे ! जिन पर क्लिक करके आप इनको Download कर पाएँगे ! जो कि आपको आने बाले सभी प्रकार के Competitive Exams में काम आयेंगी ! अभी हमारे पास सामान्य विज्ञान बिषय से सन्बन्धित जितनी PDF हैं वो इस पोस्ट मे हम आपको उपलब्ध करा रहे है ! और आगे जितनी भी सामान्य विज्ञान बिषय से सन्बन्धित PDF हमारे पास आयेंगी उनकी लिन्क भी इसी पोस्ट में Add की जायेगी , सो आप सभी से Request है कि आप इस पोस्ट को अपने Browser के BOOKMARK में Save कर लीजिये , और Check करते रहियेगा ! 


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       Topic Related Posts

Science Topic

1. Introduction
2. Classification of Organisms.
3. Cytology
4. Genetics
5. Structure of Plant and Animal Cell.
6. Classification of Plant Kingdom.
7. Plant Morphology
8. Plant tissue
9. Photosynthesis
10. Plant Hormones
11. Plant Diseases

12. Mode of Nutrition in Plant.
13. Control and Coordination in Plant
14. Sexual Reproduction in Flowering Plant.
15. Asexual Reproduction in Plants.
16. Transport system in Plant.
17. Respiration and Excretion in plants.
18. The Cell: The foundation of all living things.
19. Cell: Structure and Functions.
20. Control and Coordination in Human.
21. Human Reproductive system.
22. Excretory system in Humans.
23. Respiratory system in Humans.
24. Human Circulatory system.
25. The Heart.
26. Composition of Blood.
27. Functions of Blood.
28. Human Digestive system.
29. Cell Division

30. Food and Nutrition.
➝ Food & Nutrition MCQ-1: Carbohydrates
➝ Food & Nutrition MCQ-2: Proteins.
31. Human Diseases.
32. Nuclear fission and nuclear fusion
33. Classification of Animal Kingdom.
34. The five kingdoms of life.
35. Mode of Nutrition in Animal.
36. Nutrition in Animal.
37. Sexual Reproduction in Animal.
38. Respiration in Animals.
39. Miscellaneous.
RRB General Science Questions for ALP & Group d1
RRB General Science Questions for ALP
Physics Topics
The name of topics covered in the physics syllabus is as follows:

 Chemistry Notes PDF in Hindi

Q.1 The metal does not give H2 on treatment with dilute HCL is

(A) Zn

(B) Fe

(C) Ag

(D) Ca

Ans .  C

Q.2 The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

(A) 1 gram of molecule

(B) 0.5 gram of molecule

(C) 5 gram of molecule

(D) 10 gram of molecule

Ans .  C


Q.3 The most extensive, commercially useful source of thorium as monazite sand occurs in India at

(A) Orissa coast

(B) Travancore coast

(C) West Bengal coast

(D) Gujarat coast

Ans .  B

Q.4 The main active constituent of tea and coffee is

(A) nicotine

(B) chlorophyll

(C) caffeine

(D) aspirin

Ans .  C

Q.5 The maximum number of isomers for an alkene with molecular formula C4H8 is

(A) 5

(B) 4

(C) 2

(D) 3

Ans .  B

Chemistry Notes PDF in Hindi

Q.6 The hardest form of carbon is

(A) coke

(B) graphite

(C) diamond

(D) charcoal

Ans .  C

Q.7 The most important ore of aluminum is

(A) bauxite

(B) magnetite

(C) haematite

(D) monazite

Ans .  A

Chemistry Questions


Q.8 The organic reaction represented by equation CH3 – CH = O + H2NOH gives CH3 – CH – NH + H2O is an example of

(A) an addition reaction

(B) a condensation reaction

(C) an oxidation reaction

(D) an elimination reaction

Ans .  B

Q.9 The number of electrons presents in H+ is

(A) zero

(B) one

(C) two

(D) three

Ans .  A

Q.10 The hottest part of the gas flame is known as

(A) luminous zone

(B) dark zone

(C) blue zone

(D) non-luminous zone

Hide Answer

Ans .  D

Q.11 The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is

(A) carbon

(B) hydrogen

(C) oxygen

(D) nitrogen

Ans .  C

Q.12 The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is

(A) chain isomerism

(B) functional group isomerism

(C) positional isomerism

(D) metamerism

Ans .  C

Q.13 The half-life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

(A) 1/6

(B) 1/3

(C) 1/8

(D) 1/4

Ans .  C


Q.14 The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

(A) 4

(B) 5

(C) 2

(D) zero

Hide Answer

Ans .  A

Chemistry Questions and Answers

Q.15 The number of atoms present in 21.6 gram of silver (atomic weight = 108) is the same as the molecules in

(A) 1.8 gram of H2O

(B) 12 moles of KMnO4

(C) 0.6N H2SO4

(D) 4.6 gram of C2H5OH

Ans .  B

Q.16 The National Chemical Laboratory is situated in

(A) New Delhi

(B) Bangalore

(C) Pune

(D) Patna

Ans .  C

Q.17 Equal masses of oxygen, hydrogen, and methane are kept under identical conditions. The ratio of the volumes of gases will be

(A) 2 : 16 : 2

(B) 2 : 16 : 1

(C) 1 : 16 : 2

(D) 1 : 1 : 1

Ans .  C

Q.18 The mass number of an atom is equal to

(A) the number of protons

(B) the number of protons and electrons

(C) the number of nucleons

(D) the number of neutrons

Ans .  C

Q.19 The high reactivity of fluorine is due to

(A) its high electronegativity

(B) small size of fluorine atom

(C) availability of d-orbitals

(D) strong F – F bond

Ans .  A

Q.20 The iron ore magnetite consists of

(A) Fe2O3

(B) Fe3OH4

(C) FeCO3

(D) 3Fe2O3 .. 3H2O

Ans .  A

Q.21 The ionization energy of the hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is

(A) 5x/36

(B) 5x

(C) 7.2 x

(D) x/6

Ans .  A


Q.22 The major constituent of air is

(A) nitrogen

(B) carbon dioxide

(C) oxygen

(D) hydrogen

Ans .  A

Q.23 The main chemical constituent of clay is

(A) silicon oxide

(B) aluminium borosilicate

(C) zeolites

(D) aluminium silicate

Ans .  D

Q.24 The mineral containing both magnesium and calcium is

(A) magnesite

(B) calcite

(C) carnallite

(D) dolomite

Ans .  D

Q.25 The method that cannot be used for removing the permanent hardness of water is

(A) adding sodium carbonate

(B) distillation

(C) adding caustic soda

(D) boiling

Ans .  D

Q.26 The following are the half-lives of four active isotopes. Which one of the following is the most dangerous to handle?

(A) 3 billion years

(B) 100 years

(C) 0.01 minute

(D) 13 days

Ans .  C

Q.27 The gas used for artificial ripening of green fruit is

(A) ethylene

(B) ethane

(C) carbon dioxide

(D) acetylene

Ans .  A

Q.28 Zone refining is used for the purification of

(A) Au

(B) Ge

(C) Ag

(D) Cu

Ans .  B

Chemistry Questions with Answers

Q.29 The main chemical constituent of the oil of cardamom which is responsible for flavor of this oil is

(A) cineole

(B) engenol

(C) geraniol

(D) limonene

Ans .  A

Q.30 The molecule which has the highest percentage of ionic character among the following is

(A) HI

(B) HF


(D) HBr

Ans .  B

Q.31 The gas used in the manufacture of vanaspati from vegetable oil is

(A) hydrogen

(B) oxygen

(C) nitrogen

(D) carbon dioxide

Ans .  A

Q.32 The ionic radii of N3-, O2-, F- and Na+ follows the order

(A) N3- > O2- > F- > Na+

(B) N3- > Na+ > O2- > F-

(C) Na+ > O2- > N3- > F-

(D) O2- > F- > Na+ > N3-

Ans .  A

Q.33 The graphite rods in the nuclear reactor

(A) react with U to release energy

(B) produce neutrons

(C) undergo combustion which triggers the nuclear fission

(D) convert fast moving neutrons into thermal neutrons

Ans .  D

Q.34 The first metal used by man was

(A) iron

(B) copper

(C) gold

(D) bronze

Ans .  B

Q.35 The hydronium ion is

(A) H+

(B) HO –

(C) H2+

(D) H3O+

Ans .  D

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