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Kaisu Dev
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Kaisu Dev
Asked: December 11, 2021In: Class 10 Science

A milk man adds a very small amount of baking soda to fresh milk:

The milkman shifts the pH of the fresh milk from 6 to slightly alkaline (to decrease the rate of fermentation) because in alkaline condition milk does not set as curd easily.

class 10 science mcq solutionsclass 10th science cbsc sample paper
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Bhavna Singh
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Bhavna Singh
Asked: December 11, 2021In: Class 10 Science

What is the formula for magnification obtained with a lens?

Magnification obtained by a lens is the ratio of height of image (h₁) to the height of object (h₂) i.e., Magnification, m= h₁/h₂

class 10 science mcq solutionsclass 10th science cbsc sample paper
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Bhavna Singh
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Bhavna Singh
Asked: December 11, 2021In: Class 10 Science

How spherical mirror is made?

When we cut sphere, two parts we got and here spherical mirror is formed. But remember, applying silvering colour or agent either the inside or outside surface.

class 10 science mcq solutionsclass 10th science cbsc sample paper
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savita sood
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savita sood
Asked: December 4, 2021In: Class 10 Science

Nelu’s friend suffered a fracture in her foot while riding her bicycle. She had to be admitted to the Nursing Home and the doctor plastered her foot. The chemical formula for POP is:

Chemical name of POP is calcium sulphate hemihydrate. It is written in this form because two formula units of CaSO₄ share one molecule of water.

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virender
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virender
Asked: December 3, 2021In: Class 10 Science

Which among the following is (are) double displacement reaction(s)?

(i) Pb + CuCl₂ → PbCI₂ + Cu (ii) Na₂SO₄ + BaCl₂ → BaSO₄ + 2NACI (iii) C+ O₂ → CO₂ (iv) CH₄ + 20₂ → CO₂ + 2H₂ O

class 10 science mcq solutionsclass 10th science cbsc sample paper
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Vaishali Duby
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Vaishali Duby
Asked: December 3, 2021In: Class 10 Science

When the turnings are added to silver nitrate solution, a blue coloured solution is formed after some time. It is because copper:

(I) Displaces silver from the solution (II) Forms a blue coloured complex with AgNO₃ (III) Is oxidized to Cu2⁺ (IV) Is reduced to Cu2⁺

class 10 science mcq solutionsclass 10th science cbsc sample paper
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vikash saini
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vikash saini
Asked: December 3, 2021In: Class 10 Science

A spectrum of light is observed when white light is directed to a prism as:

When white light enters a Prism, different colours undergo refraction and as they enter a denser medium, they bend towards the normal at different angles.

class 10 science mcq solutionsclass 10th science cbsc sample paper
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vikash saini
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vikash saini
Asked: December 3, 2021In: Class 10 Science

Select the colours in the correct ascending of wavelength:

The colours in ascending order of wavelength are: Violet, Indigo, Blue, after that Green, Yellow, Orange and lastly, Red. The wavelength of violet colour is the least (First stand in wavelength) and that of red (last stand in wave length) ...

class 10 science mcq solutionsclass 10th science cbsc sample paper
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Aashish
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Aashish
Asked: November 17, 2021In: Class 9 Science

The living cells were discovered by

In the year 1670, Dutch biologist Anton van Leeuwenhoek discovered the living cell when he looked at pond water under a microscope, which is made up of lenses.

class 9 science mcq solutionsclass 9th science cbsc sample paper
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Aina
Poll
Aina
Asked: November 17, 2021In: Class 9 Science

The husk of coconut is made up of

Class 9th Science Session 2021-22 Class 9 Science Terminal Exams MCQ Solutions Class IX Science MCQ Extra Questions Answers 9th Science Terminal Exam Based MCQ Extra Questions

class 9 science mcq solutionsclass 9th science cbsc sample paper
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