Alok kumar

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Alok kumar

Asked: December 16, 2021In: Class 10 Science

The combination of CO, and H₂ is known as:

Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10th Science Session 2022-23

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Alok kumar

Asked: December 16, 2021In: Class 10 Science

An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in test tube, the change obtained is that:

We know that, when aluminium stipe kept immersed in freshly prepared ferrous sulphate – FeSO₄, the change in colour observed, the green solution slowly turns into brown. Because Al is more reactive than Fe, it displaces iron from its sulphate ...

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Alok kumar

Asked: December 15, 2021In: Class 10 Science

2 mL each of Conc. HCl, HNO₃ and a mixture of conc. HCl, & conc. HNO₃, in the ratio of 3:1 were taken in test tubes labelled as A, B, and C. A small piece of metal was put in each test tube. No change occurred in test tubes A & B, but the metal got dissolved in test tube C. The metal could be:

A mixer of Conc. HCl & Conc. HNO₃ in the ratio of 3:1, is known as “Aqua-Regia”. Gold dissolve only in aqua-regia.

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Alok kumar

Asked: December 8, 2021In: Class 10 Science

The internal (cellular) energy reserve in autotrophs is:

The food prepared in the plant (which are called autotrophs) by the process of photosynthesis is glucose that gets stored in various plant parts in the form of starch.

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Alok kumar

Asked: December 8, 2021In: Class 10 Science

Muskaan performed an activity using a concave mirror of a focal length 20 cm. She placed the object at 30 cm in front of the mirror. Where is the image likely to be formed?

In the given question, u = – 30 cm and f = -20 cm. so, the object lies between F (20 cm) & C (40 cm). Therefore, a real image is formed beyond C, that is beyond 40 cm. Formula ...

Alok kumar

The combination of CO, and H₂ is known as:

An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in test tube, the change obtained is that:

2 mL each of Conc. HCl, HNO₃ and a mixture of conc. HCl, & conc. HNO₃, in the ratio of 3:1 were taken in test tubes labelled as A, B, and C. A small piece of metal was put in each test tube. No change occurred in test tubes A & B, but the metal got dissolved in test tube C. The metal could be:

The internal (cellular) energy reserve in autotrophs is:

Muskaan performed an activity using a concave mirror of a focal length 20 cm. She placed the object at 30 cm in front of the mirror. Where is the image likely to be formed?

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