10 grade science> List any two observations when Ferrous Su...

List any two observations when Ferrous Sulphate is heated in a dry test tube?

Nandini Sharma , 4 Years ago

Grade 10

23 Answers

Gaurav Yadav

Last Activity: 4 Years ago

Hey student.

• Initial light green colour changes to reddish-brown colour

• Colourless gas is evolved

• Gas with choking smell is evolved

This is the answer to your question. Hope this helps you.

Approved

Nandini Sharma

Last Activity: 4 Years ago

Identify the products formed when 1 mL of dil. Hydrochloric acid is added to 1g of Sodium metal?

Gaurav Yadav

Last Activity: 4 Years ago

Hey student.

Sodium Chloride and Hydrogen gas

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Nandini Sharma

Last Activity: 4 Years ago

Write the chemical name and chemical formula of the salt used to remove permanent hardness of water.

Gaurav Yadav

Last Activity: 4 Years ago

Hey student.

Sodium Carbonate decahydrate, Na₂CO₃.10H₂O

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Nandini Sharma

Last Activity: 4 Years ago

Which of the following is not observed in a homologous series? Give reason for your choice. a) Change in chemical properties b) Difference in -CH₂ and 14u molecular mass c) Gradation in physical properties d) Same functional group

Gaurav Yadav

Last Activity: 4 Years ago

Hey student,

a. Change in chemical properties It does not occur due to the presence of the same functional group.

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Nandini Sharma

Last Activity: 4 Years ago

Why does the Sun appear white at noon?

Gaurav Yadav

Last Activity: 4 Years ago

Hey student,

The light is least scattered at noon.

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Nandini Sharma

Last Activity: 4 Years ago

Both a spherical mirror and a thin spherical lens have a focal length of (-)15 cm. What type of mirror and lens are these?

Gaurav Yadav

Last Activity: 4 Years ago

Hey student,

Both are concave. Alternative answer that should be given credit: Plano-concave lens

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Nandini Sharma

Last Activity: 4 Years ago

The image formed by a concave mirror is observed to be real, inverted and larger than the object. Where is the object placed?

Gaurav Yadav

Last Activity: 4 Years ago

Hey student.

Between the principal focus and the centre of curvature.

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Nandini Sharma

Last Activity: 4 Years ago

Name the part of a lens through which a ray of light passes without suffering any deviation.

Gaurav Yadav

Last Activity: 4 Years ago

Hey student.

Optical centre is that part of the lens.

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Nandini Sharma

Last Activity: 4 Years ago

In the arrangement shown in figure there are two coils wound on a nonconducting cylindrical rod. Initially the key is not inserted in the circuit. Later the key is inserted and then removed shortly after. What are the two observations that can be noted from the galvanometer reading?

Gaurav Yadav

Last Activity: 4 Years ago

Hey student,

There are momentary galvanometer deflections that die out shortly; the deflections are in opposite directions.

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Nandini Sharma

Last Activity: 4 Years ago

Draw the magnetic field lines around a straight current carrying conductor

Gaurav Yadav

Last Activity: 4 Years ago

Hey student.

This is the answer to your question. Hope this helps you.

Nandini Sharma

Last Activity: 4 Years ago

Two unequal resistances are connected in parallel. If you are not provided with any other parameters (eg. numerical values of I and R), what can be said about the voltage drop across the two resistors?

Gaurav Yadav

Last Activity: 4 Years ago

Hey student.

Voltage-drop is the same across both.

This is the answer to your question. Hope this helps you.

Nandini Sharma

Last Activity: 4 Years ago

Some work is done to move a charge Q from infinity to a point A in space. The potential of the point A is given as V. What is the work done to move this charge from infinity in terms of Q and V?