Chemistry-
General
Easy

Question

Gas masks containing activated charcoal to remove poisonous gases from atmosphere acts on the principle of :

  1. Adsorption
  2. Absorption
  3. Sorption
  4. All of these

The correct answer is: Adsorption

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The correct match is:

Match the items in column I and column II and choose the correct option:

The correct match is:

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The adjacent graph shows the extra extension (Vx) of a wire length 1m suspended from the top of a roof at one end with an extra load Vw connected to the other end . If the cross sectional area of the wire is 10 to the power of negative 6 end exponent m to the power of 2 end exponent, calculate the Young’s modulus of the material of the wire.

The adjacent graph shows the extra extension (Vx) of a wire length 1m suspended from the top of a roof at one end with an extra load Vw connected to the other end . If the cross sectional area of the wire is 10 to the power of negative 6 end exponent m to the power of 2 end exponent, calculate the Young’s modulus of the material of the wire.

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Catalyst only

Catalyst only

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Iftext end text f colon left square bracket negative 2 comma 2 right square bracket rightwards arrow R text  is end text defined by f left parenthesis x right parenthesis equals open curly brackets table row cell fraction numerator square root of 1 plus c x end root minus square root of 1 minus c x end root over denominator x end fraction comma text end text text f end text text o end text text r end text text end text minus 2 less or equal than x less than 0 end cell row cell fraction numerator x plus 3 over denominator x plus 1 end fraction comma text end text text f end text text o end text text r end text text end text 0 less or equal than x less or equal than 2 end cell end table close is continuous on [-2,2] then c =

Iftext end text f colon left square bracket negative 2 comma 2 right square bracket rightwards arrow R text  is end text defined by f left parenthesis x right parenthesis equals open curly brackets table row cell fraction numerator square root of 1 plus c x end root minus square root of 1 minus c x end root over denominator x end fraction comma text end text text f end text text o end text text r end text text end text minus 2 less or equal than x less than 0 end cell row cell fraction numerator x plus 3 over denominator x plus 1 end fraction comma text end text text f end text text o end text text r end text text end text 0 less or equal than x less or equal than 2 end cell end table close is continuous on [-2,2] then c =

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L subscript t not stretchy rightwards arrow 2 end subscript fraction numerator vertical line x minus 2 vertical line over denominator x minus 2 end fraction

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Let f left parenthesis x right parenthesis equals not stretchy integral fraction numerator x to the power of 2 end exponent d x over denominator left parenthesis 1 plus x to the power of 2 end exponent right parenthesis open parentheses 1 plus square root of 1 plus x to the power of 2 end exponent end root close parentheses end fractionand f left parenthesis 0 right parenthesis equals 0, then the value of f left parenthesis 1 right parenthesis be

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Colloidal sol is :

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L t subscript y not stretchy rightwards arrow 0 end subscript fraction numerator sin invisible function application left parenthesis a plus b x right parenthesis minus sin invisible function application left parenthesis a minus b x right parenthesis over denominator x end fraction

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Colloidal sol is :

Colloidal sol is :

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In the given circuit, no current is passing through the galvanometer. If the cross sectional diameter of the wire AB is doubled, then for null point of galvanometer, the value of AC would be:

In the given circuit, no current is passing through the galvanometer. If the cross sectional diameter of the wire AB is doubled, then for null point of galvanometer, the value of AC would be:

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