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Chemistry-

General

Easy

Question

When $C a C O subscript 3 end subscript$ is heated at a constant temperature in a closed container, the pressure due to $C O subscript 2 end subscript$ produced will:

Change with the amount of ${C a C O}_{3}$ taken
Change with the size of the container
Remain constant so long as temperature is constant
Remain constant even if temperature is changed

The correct answer is: Remain constant so long as temperature is constant

$K subscript c end subscript$ is characteristic constant for a given reaction at a temperature ; $K subscript p end subscript equals P subscript C O subscript 2 end subscript end subscript$ .

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Which favours the backward reaction in a chemical equilibrium?

Which favours the backward reaction in a chemical equilibrium?

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In $K subscript p end subscript equals K subscript c end subscript open square brackets R T close square brackets to the power of increment n end exponent comma increment n$ may have:

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The $left square bracket H to the power of plus end exponent right square bracket$ ion concentration in $0.001 blank M$ acetic acid is $1.34 cross times 10 to the power of negative 4 end exponent g blank i o n divided by l i t r e.$ The $open square brackets H to the power of plus end exponent close square brackets$ ion concentration of $0.164 g blank o f blank C H subscript 3 end subscript C O O N a$ is added to a $l i t r e$ of $0.001 blank M C H subscript 3 end subscript C O O H$ will be:

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An aqueous solution contains $N i to the power of 2 plus end exponent comma C o to the power of 2 plus end exponent blank a n d blank P b to the power of 2 plus end exponent$ ions at equal concentrations. The solubility product of $N i S comma P b S blank a n d blank C o S$ in water at $25 ℃$ are $1.4 cross times 10 to the power of negative 24 end exponent comma 3.4 cross times 10 to the power of negative 28 end exponent a n d blank 3 cross times 10 to the power of negative 26 end exponent$ , respectively. Indicate which of these ions will be precipitated first and last when sulphide concentration is progressively increased from zero?

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The mixed salt among the following is:

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