Forwarded from Deleted Account
A colourless liquid sample was tested with pH paper strip. The colour of the strip changed to reddish pink. The sample could be :
Anonymous Quiz
14%
Tap water
38%
sodium hydroxide solution
20%
Distilled water
28%
ethanoic acid solution
Forwarded from Deleted Account
The colour of the pH paper strip turned red when it was dipped into a sample . The sample could be :
Anonymous Quiz
18%
dilute sodium bicarbonate solution
17%
Tap water
28%
dilute sodium hydroxide solution
37%
dilute hydrochloric acid
Quadratic Equations Class 10 | Quadratic Equation Formula Class 10 | NCERT Class 10 Maths Ch 4 Solutions | IIT JEE FOUNDATION COURSE FOR CLASS 10: https://www.youtube.com/playlist?list=PL-hYriZY1lNzw37_3Qs4BQn0CkVrNkDUw
For study material and video solutions join for class 9th and 10th @garg_tutorials

For class 11th and 12th
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For doubts n discussion
@gargtutorialsdiscussion
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*Topics deleted chapter wise*
Class-10, Mathematics
*1.Real Numbers*
Ex-1.1(Euclid Division Lemma)
*2. Polynomials*
Ex- 2.3,Q-3,4 and 5
Ex- 2.4,Q-4
(Problems based on Division Algorithm)
*3. Linear equations in two variables*
Cross multiplication method
*4. Quadratic equations*
Problem sums based on reducible forms
*5. Arithmetic progression*
Ex - 5.3, Q -15 to 20
Example - 16
Ex - 5.4, Q - 3, 4 and 5
(Problem sums based on sum of n terms of an AP)
*6. Triangles*
Proofs of Theorems 6.6 and 6.9
*7. Coordinate Geometry*
Ex - 7.3
Examples - 11 to 15
Ex - 7.4 , Q - 5,6 and 7
(Area of triangle)
*8. Trigonometry*
Derivation of 0°and 90°
Ex -8.3 (complementary angles)
Examples-9,10 and 11
*9. Applications of trigonometry*
No deletion
*10. Circle*
No deletion
*11. Construction*
Ex - 11.1, Q -2 to 7
(Construction of similar triangles)
Examples- 1 and 2
*12. Areas related to circles*
Example 3
Ex - 12.2 Q -7
(Central angle 120°)
*13. Volume and surface area*
Examples - 12,13 and 14
Ex - 13.4
Ex - 13.5, Q - 5,6 and 7
(Frustum of cone)
*14. Statistics*
Step Deviation Method
Ex - 14.4( Cumulative Frequency Curve)
Example - 9
*15. Probability*
No deletion
Triangle chapter already done please open YouTube search Garg tutorials and then you will find 9 or 10 videos of live classes on triangles