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

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

Grade:10

23 Answers

Gaurav Yadav
406 Points
one month 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.
Nandini Sharma
25 Points
one month ago
Identify the products formed when 1 mL of dil. Hydrochloric acid is added to 1g of Sodium metal?
Identify the products formed when 1 mL of dil. Hydrochloric acid is added to 1g of Sodium metal?
 
Gaurav Yadav
406 Points
one month ago
Hey student.
 
Sodium Chloride and Hydrogen gas
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month ago
Write the chemical name and chemical formula of the salt used to remove permanent hardness of water.
Write the chemical name and chemical formula of the salt used to remove permanent hardness of water.
Gaurav Yadav
406 Points
one month ago
Hey student.
 
Sodium Carbonate decahydrate, Na2CO3.10H2O
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month 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
406 Points
one month ago
Hey student,
 
a. Change in chemical properties It does not occur due to the presence of the same functional group.
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month ago
Why does the Sun appear white at noon?
Why does the Sun appear white at noon?
Why does the Sun appear white at noon?
Gaurav Yadav
406 Points
one month ago
Hey student,
 
The light is least scattered at noon.
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month 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
406 Points
one month ago
Hey student,
 
Both are concave. Alternative answer that should be given credit: Plano-concave lens
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month 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
406 Points
one month ago
Hey student.
 
Between the principal focus and the centre of curvature.
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month ago
Name the part of a lens through which a ray of light passes without suffering any deviation.
Name the part of a lens through which a ray of light passes without suffering any deviation.
Gaurav Yadav
406 Points
one month ago
Hey student.
 
Optical centre is that part of the lens.
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month 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
406 Points
one month ago
Hey student,
 
There are momentary galvanometer deflections that die out shortly; the deflections are in opposite directions.
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month ago
Draw the magnetic field lines around a straight current carrying conductor
Draw the magnetic field lines around a straight current carrying conductor
Gaurav Yadav
406 Points
one month ago
Hey student.
 
This is the answer to your question. Hope this helps you. 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month 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
406 Points
one month ago
Hey student.
 
Voltage-drop is the same across both.
 
This is the answer to your question. Hope this helps you.
Nandini Sharma
25 Points
one month 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?
 
Gaurav Yadav
406 Points
one month ago
Hey student,
 
W = VQ
 
This is the answer to your question. Hope this helps you.
This is the answer to your question. Hope this helps you.

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