Tag: chemical from common salt

Questions Related to chemical from common salt

Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

Bleaching powder loses oxygen in the presence of:

calcium chloride
cobalt chloride
sodium chloride
none of the above

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

The colour of bleaching powder is :

green
pale yellow
blue
white

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

When treated with $conc. HCl, MnO _{2}$ yields a gas $(X)$ which further reacts with $Ca(OH) _{2}$ to generate a white solid $(Y)$. The solid $Y$ reacts with $dil. HCl$ to produce the same gas $X$. The solid $Y$ is :

$CaO$
$CaCl _{2}$
$Ca(OCl)Cl$
$CaCO _{3}$

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

Bleaching powder is used for disinfecting drinking water.

True
False

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

Bleaching powder has several uses, some of which are mentioned here. Pick the false one.

For decolourising sugar
For bleaching paper pulp
For sterilizing water
For making chloroform

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

Which of the following can act as a catalyst in the decomposition of bleaching powder?

Cobalt chloride
Cobalt
Chlorine
None of the above

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

When bleaching powder undergoes auto-oxidation, the change in oxidation state is:

$+1 \ to +5$
$-1\ to\ 0$
$+1 \ to +3$
$-1\ to +3$

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

On treating bleaching powder with ethyl alcohol it gives chloroform.

True
False

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

Bleaching powder is obtained by the reaction of $Cl _{2}$ with:

dilute solution of $Ca[OH] _{2}$
concentrated solution of $Ca[OH] _{2}$
dry $CaO$
dry slaked lime

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Multiple choice chemistry substances in common use chemical from common salt compounds of carbon some useful compounds in everyday life

State whether the given statement is true or false:

Bleaching powder contains about 50 % available chlorine.

True
False

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