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One or More than One Options Correct Type
Direction (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.
Q.
An example of double salt is/a
- a)hypo
- b)bleaching powder
- c)common alum
- d)carnallite
Correct answer is option 'C,D'. Can you explain this answer?
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Verified Answer
One or More than One Options Correct TypeDirection (Q. Nos. 11-15) Thi...
Common alum is K2SO4.AI2(SO4)3.24H2O and carnallite is KCl.MgCl2.6H2O.
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One or More than One Options Correct TypeDirection (Q. Nos. 11-15) Thi...
Double salts are compounds that contain two different cations or anions and are held together by ionic bonds. They are formed when two different salts are crystallized together from a solution. In the given options, the correct examples of double salts are common alum (c) and carnallite (d).
Explanation of options:
a) Hypo: Hypo, also known as sodium thiosulfate, is not a double salt. It is a compound that contains only one type of cation (sodium) and one type of anion (thiosulfate).
b) Bleaching powder: Bleaching powder, also known as calcium hypochlorite, is not a double salt. It is a compound that contains only one type of cation (calcium) and one type of anion (hypochlorite).
c) Common alum: Common alum, also known as potassium aluminum sulfate, is a double salt. It contains two different cations (potassium and aluminum) and two different anions (sulfate). The chemical formula of common alum is KAl(SO4)2·12H2O.
d) Carnallite: Carnallite is a double salt. It contains two different cations (magnesium and potassium) and two different anions (chloride). The chemical formula of carnallite is KMgCl3·6H2O.
In conclusion, the correct examples of double salts among the given options are common alum (c) and carnallite (d).
Explanation of options:
a) Hypo: Hypo, also known as sodium thiosulfate, is not a double salt. It is a compound that contains only one type of cation (sodium) and one type of anion (thiosulfate).
b) Bleaching powder: Bleaching powder, also known as calcium hypochlorite, is not a double salt. It is a compound that contains only one type of cation (calcium) and one type of anion (hypochlorite).
c) Common alum: Common alum, also known as potassium aluminum sulfate, is a double salt. It contains two different cations (potassium and aluminum) and two different anions (sulfate). The chemical formula of common alum is KAl(SO4)2·12H2O.
d) Carnallite: Carnallite is a double salt. It contains two different cations (magnesium and potassium) and two different anions (chloride). The chemical formula of carnallite is KMgCl3·6H2O.
In conclusion, the correct examples of double salts among the given options are common alum (c) and carnallite (d).
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One or More than One Options Correct TypeDirection (Q. Nos. 11-15) Thi...
Cacl2 . ca (oh )2. caocl2.2h20 is bleaching poweder
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One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.An example of double salt is/aa)hypob)bleaching powderc)common alumd)carnalliteCorrect answer is option 'C,D'. Can you explain this answer?
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