Chemical from common salt - class-XI
| Description: chemical from common salt | |
| Number of Questions: 48 | |
| Created by: Sara Dalvi | |
| Tags: allotropy of carbon s-block elements the s-block elements (alkali and alkaline earth metals) acids, bases and salts the s-block elements chemistry substances in common use chemistry in everyday life |
Slaked lime reacts with chlorine to give:
The solution of bleaching powder in water is always a clear solution.
The molecular formula of Baking soda is:
Bleaching powder is effective with cold water, but ineffective with hot water. This is because of:
The reaction of $NaCl$ and $CaCO _3$ gives sodium carbonate. But this reaction cannot be used for the manufacture of washing soda since it is a reversible reaction.
Bleaching powder is soluble in cold water giving a milky solution due to:
Bleaching powder is obtained by the interaction of $Cl _2$ with a:
Cobalt chloride acts as a calalyst, in the decomposition of bleaching powder.
Bleaching powder slowly decomposes to form:
The average oxidation state of chlorine in bleaching power is :
Which one of the following processes does not occur during formation of $CH{ Cl } _{ 3 }$ from ${ C H } _{ 3 }OH$ and bleaching powder ?
Which of the following negative radical is present in bleaching powder?
Action bleaching poweder on ethyyl alcohol gives?
Bleaching properties of bleaching powder are due it its:
Oxidation number of $Cl$ in ${ CaOCl } _{ 2 }$ (bleaching powder) is:
Bleaching powder is obtained by treating chlorine with ________ .
Bleaching powder is disinfectant for purification of water when water born germs are killed. But disinfectant activity is destroyed. It is due to its disproportionation into:
The active constituent of bleaching powder is:
$ CH _3CH _2OH$ on reaction with bleaching powder forms:
Slaked lime and chlorine reacts to produce :
The amount of chlorine obtained from a sample of bleaching powder by treatment with excess of dilute acid or $ \displaystyle CO _{2}$ is called available chlorine.
Bleaching powder is used :
Bleaching powder has a strong bleaching action due to:
Materials used in the manufacture of bleaching powder are :
Which of the following has the strongest bleaching property?
Which one of the following is a correct statement?
The real bleaching agent present in bleaching powder is:
Bleaching powder is:
What is used as a bleaching linen, wood pulp and washed clothes in laundry?
Calcium hydroxide react with chlorine to form:
Formula of calcium hypochlorite is:
Bleaching powder loses ___________ by the action of dilute acids in excess.
On long standing, bleaching powder undergoes auto-oxidation into:
Uses of bleaching powder is/are:
Bleaching powder loses oxygen in the presence of:
The colour of bleaching powder is :
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 :
Bleaching powder is used for disinfecting drinking water.
Bleaching powder has several uses, some of which are mentioned here. Pick the false one.
Which of the following can act as a catalyst in the decomposition of bleaching powder?
When bleaching powder undergoes auto-oxidation, the change in oxidation state is:
On treating bleaching powder with ethyl alcohol it gives chloroform.
Bleaching powder is obtained by the reaction of $Cl _{2}$ with:
Available chlorine can be liberated from bleaching powder by the reaction with:
On long standing, bleaching powder undergoes auto oxidation.
Substance $X$:
(I) reacts with $H _2S$ to produce white turbidity.
(II) changes light green solution of $FeSO _4$ into yellow colour.
(III) reacts with moisture to give pungent smelling gas.
Hence $X$ is:
The bleaching property of chlorine water is due to: