Class 10 science chemistry Important question

Class 10 Science Chemistry Important Questions

1 give the chemical reaction that is involved in in black and white photography

2 A Shiny Brown coloured element x on heating in air air becomes black in colour name the element X and the the black coloured comp formed.

3 give an example of redox reaction and name the reducing and oxidising agent in it.

 4 what is precipitation reaction? give an example.

5 give one example each of (i) photolytic (i) electrolytic react.

6 write the preparation reaction of baking soda?number

7 difference between anodising and galvanisatnnumber

8 difference  between calcination and roasting

9. explain the process of electrolytic refining of Cu.

10. essential condition for rusting of iron

11. why do ionic compound have high MP?

Class 10 physics important questions

Class 10 Science Physics Important Questions

1. All Ray Diagrams
2. Sky appear Blue, Black, Red
3. The far point of a myopic person is 80cm in front of the eye. What is the nature and power of lense required to correct the problem?

4. Reason behind advanced sunrise and delayed

5. Give functions of (i) Iris  (ii) pupil

6. The absolute ref indices of glass and water are 4/3 respectively If the speed of light in glass is 2x10 power 8 m/s. Calculate the speed of light in vacuum.

7. A convex lens has a focal length of 10 cm At what distance from the lens should object be placed so that it give a real and inverted image 20cm away from the lens ? What would be the size of image if the object is 2cm hight?  Draw RD

8. Give some uses of (I) convex lens (ii) Concave mirror (III) Convex mirror

9.difference between real and virtual images

10. Difference between dispersion and scattering of light

11. State joules law of heating

12. Difference between permanent magnets and electromagnetic

13. Difference between split rings and slip rings

14. Give an advantage and disadvantages of (I) AC. (II) DC

15. State the working principal of electric generater and electric motor

16. Give circuit symbol of (I)  electric meter

17. What is over landing?  Give advantage of Earthing.

Class 10 important questions

1. Write 3 process of Photosynthesis

2. Explain the process of digestion

3. Explain the working of heart

4. Draw the diagram of human excretory
System
5. Veins and artaries

6 Diffence between transportation and
translocation

7. Blood and lymph

8. Different method of Contraception

9. Advantages of  (i) sexual reproduction.
                                (ii) Asexual reproduction.

10. why does menstruation in human
 female ? Problems associated.

11. Types of reproduction in liesmania and plasmadiam

12. Implantation

13. Double fertilization (in flowring plant

14. function of seminal Vesicle
and prostate glard

15. How carrt and radish are homologus Organ

16. How is the equal genetic Contribution of male and female parents insured in Progeny

17. Blood group (A.B.O)

18. Advantages of using Solar cell
and Biogas


19. 3 harmful effects of using
polethene bag on in environment

20. why do we need to manage our resources ?

CBSE Class 12 Last 10 years Question papers

CBSE Class -XII Previous 10 Years Question Papers


Hello friends, today we have given you the Question papers of last 10 years of Mathematics, Biology and Chemistry of class 12, which you can easily download. 

Sets 1,2, 3, three sets are given. You must solve these papers For good marks in your exams 

Click on the link below.

Click Here

Class X Mathematics Last 10 years Question papers

Class X Mathematics Last 10 years Question papers 

From here you can download question papers of last 10 years of mathematics
All papers are years wise
All papers are in pdf form

The download link is given below, you can download it easily

Click Here 

Class 10 Science Previous years question paper

Class 10 Science Previous years question paper

2011 to 2020:-

You can download Class - X Science last year's question papers from here, which will help you a lot in your exam.

This question paper has been given Years Wise and all the sets as well.
Also papers of Compartment and delhi, foreign and All India which you can make a very good performance in your Exam.
You can download it by clicking here without any frills and Zip File etc.
These are just PDF files that will be easy to download. No zip files or extracts are needed.


Click Here to Download