To control the growth of algae in reservoirs, the compound which is used, is (A) Bleaching powder (B) Copper sulphate (C) Lime solution(D) Alum solution

To control the growth of algae in reservoirs, the compound which is used, is 

(A) Bleaching powder 

(B) Copper sulphate 

(C) Lime solution

(D) Alum solution 

by

1 Answer

Answer :

(B) Copper sulphate

by

Related questions

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Most widely and commonly used coagulant for the removal of suspended impurities in water is (A) Bleaching powder (B) Slaked lime (C) Alum (D) Copper sulphate

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Temporary hardness of water can be removed by (A) Addition of alum (a coagulant) (B) Boiling (C) Filtration (through gravity sand filter) (D) Addition of lime

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Permanent – hardness of water may be removed by addition of (1) Alum (2) Sodium carbonate (3) Lime (4) Potassium Permangante

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To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between (A) 1100° and 1200°C (B) 1200° and 1300°C (C) 1300° and 1400°C (D) 1400° and 1500°C

Description : To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between (A) 1100° and 1200°C (B) 1200° and 1300°C (C) 1300° and 1400°C (D) 1400° and 1500°C

Last Answer : D

How many grams of bleaching powder per century is better to prevent falling disease ?

Description : How many grams of bleaching powder per century is better to prevent falling disease ?

Last Answer : It is better to mix 80 grams of bleaching powder per century to prevent lean disease .

What is the chemical name of bleaching powder ?

Description : What is the chemical name of bleaching powder ?

Last Answer : The chemical name of bleaching powder is calcium hypochlorite. Other names are: Calcium Oxychloride , Hypochlorous Acid , Calcium Salt etc.

What is Bleaching Powder ?

Description : What is Bleaching Powder ?

Last Answer : It is a powder like wheel powder. Sesame stains on the fabric. Used to clean various things.

What is the technique of removing blemishes with bleaching powder ?

Description : What is the technique of removing blemishes with bleaching powder ?

Last Answer : First, cover your face and nose with a handkerchief. Take 1.5 mugs of water in a bucket for a cloth. Now stir 2.5 teaspoons of bleaching powder with water with a stick. Then soak the ... clothes well. Then rinse again with detergent powder and let dry. Finally, wash your hands thoroughly with soap.

What is the signal of bleaching powder ?

Description : What is the signal of bleaching powder ?

Last Answer : Chemical signal Ca (OCl) Cl

Bleaching Powder What ?

Last Answer : It Wheel Powder Of Like One Powder. Tila Stains Picks up Of cloth. Different Something Clear To do Usage By

Bleaching powder contains a salt of an oxoacid as one of its components . The anhydride of that acid is

Description : Bleaching powder contains a salt of an oxoacid as one of its components . The anhydride of that acid is

Last Answer : Bleaching powder contains a salt of an oxoacid as one of its components . The anhydride of that acid is A. ... ` B. `Cl_2O_7` C. `ClO_2` D. `Cl_2O_6`

The percentage of available chlorine in a commercial sampleof bleaching powder is

Description : The percentage of available chlorine in a commercial sampleof bleaching powder is

Last Answer : The percentage of available chlorine in a commercial sampleof bleaching powder is A. `52.9%` B. `55.9%` C. `58%` D. `60%`

Action of bleaching powder on ethyl alcohol gives

Description : Action of bleaching powder on ethyl alcohol gives

Last Answer : Action of bleaching powder on ethyl alcohol gives A. Choloform B. Dichloromethane C. Trichloroethane D. Ethylenechloride

When ehtyl alcohol is distilled with bleaching powder and water then chloroform is obtained. The no. of moles of bleaching powder needed in the prepar

Description : When ehtyl alcohol is distilled with bleaching powder and water then chloroform is obtained. The no. of moles of bleaching powder needed in the prepar

Last Answer : When ehtyl alcohol is distilled with bleaching powder and water then chloroform is obtained. The no. of moles of bleaching ... is A. 10 B. 5 C. 4 D. 2

What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Description : What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Last Answer : ANSWER: A

What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Description : What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Last Answer : ANSWER: A

Name the gas used in preparation of bleaching powder – (1) Oxygen (2) Hydrogen (3) Nitrogen (4) Chlorine

Description : Name the gas used in preparation of bleaching powder – (1) Oxygen (2) Hydrogen (3) Nitrogen (4) Chlorine

Last Answer : (4) Chlorine Explanation: Bleaching powder in manufactured by passing chlorine gas over dry slaked lime. Bleaching powder is also called calcium chlorohypochlorite be-cause it is considered as a mixed salt of hydrochloric acid and hypochlorous acid.