Please select a subject first
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Add potassium chromate (K2CrO4) into the solution of barium sulphate (BaSO4).
- What was the colour of the precipitate formed? Also, write the name of the precipitate.
- Write down the balanced equation for this reaction.
- Will you call this reaction a displacement reaction or a double displacement reaction? Why?
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The specific heat capacity of ______ is maximum.
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Observe the given figure of a current-carrying solenoid and write the labels of A and B correctly.

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Observe the following diagram and answer the questions given below:

Specific heat capacity of metals
- Which element has maximum specific heat capacity? Justify.
- Which element has minimum specific heat capacity? Justify.
- Define specific heat of object.
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______ is the functional group of carboxylic acid.
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Draw a neat diagram of a solenoid and name its various components.
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Fill in the blank:
The modern periodic table consists of ……………. periods.
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Fill in the blank:
The formulae of chloride of metal M is MCl2. The metal M belongs to ……………. group.
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Corrosion can be prevented by using ……………. solution.
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Calculate the focal length of a corrective lens having power +2D.
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Define ‘redox reaction’. Give one example.
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The device used for producing electric current is called _________.
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Give the molecular formula of bleaching powder.
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Differentiate between resistances in series and parallel.
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Complete the following :-
(b)

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Complete the following :-
(c)

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Elements in the same group show the same valency. Give scientific reason.
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Write the electronic configuration of K and Ne.
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State Fleming’s right-hand rule.
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