The end bleaching agent used to move last traces of colour bodies from the pulp is (A) Chlorine dioxide (ClO2 ) (B) MgO (C) SO2 gas (D) Mercaptans

The end bleaching agent used to move last traces of colour bodies from
the pulp is
(A) Chlorine dioxide (ClO2
)
(B) MgO
(C) SO2 gas
(D) Mercaptans
by

1 Answer

Answer :

(A) Chlorine dioxide (ClO2
)
by

Related questions

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Last Answer : Moisture

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Last Answer : (1) Chlorine over slaked lime Explanation: Calcium hypochlorite (bleaching powder) is manufactured by the calcium process: 2Cl2 + 2Ca(OH)2 (slaked lime) Ca(OCl)2 + CaCl2 + 2H2O. Bleaching powder is actually a mixture of calcium hypochlorite and the basic chloride with some slaked lime.

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Last Answer : Chlorine over slaked lime

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Last Answer : (D) H2S is not at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2

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Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to (A) Protect rubber goods from attack by oxygen & ozone present in the atmosphere (B) Reduce its viscosity to permit easier processing (C) Reduce the time of vulcanisation and quantity of vulcanising agent (D) Increase its viscosity

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Which one of the following is commonly used for pulp bleaching in the paper industry? (1) Mild sulphuric acid (2) Glucose isomerase (3) Hydrogen peroxide (4) Iodine and water

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Last Answer :  Hydrogen peroxide

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

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

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Last Answer : Chlorine

Which raw material is used to impart colour to the glass? a) Al2O3 b) CoO c) CaO d) MgO

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Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on (A) Slaked lime (B) Soda lime (C) Calcium perchlorate (D) None of these

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Last Answer : (D) All (A), (B) and (C)

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Last Answer : (B) Adsorption on bog iron bed

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Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc? (A) Sodium silicate (B) Sodium borate (C) Sodium tripolyphosphate (STPP) (D) Caustic soda

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Last Answer : (B) Sodium borate

SO2 is bubbled through hot sugar cane juice to (A) Act as an acidifying agent (B) Increase its concentration (C) Increase the amount of molasses (D) Increase the crystal size

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Last Answer : (A) Act as an acidifying agent

Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B.A and B are :

Description : Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B.A and B are :

Last Answer : Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B.A and B are : A. `CaOCl_( ... D. `CaOCl_(2), Na_(2) S_(2)O_(3)`

Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B.A and B are :

Description : Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B.A and B are :

Last Answer : Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B.A and B are : A. `CaOCl_( ... D. `CaOCl_(2), Na_(2) S_(2)O_(3)`

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

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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

Bleaching action of chlorine is by - (1) Decomposition (2) hydrolysis (3) reduction (4) oxidation

Description : Bleaching action of chlorine is by - (1) Decomposition (2) hydrolysis (3) reduction (4) oxidation

Last Answer : (4) oxidation Explanation: Chlorine bleaches by the process of oxidation. It needs moisture for its bleaching action. Chlorine reacts with water to form hydrochloric and hypochlorous acids.

Bleaching action of chlorine is by - (1) decomposition (2) hydrolysis (3) reduction (4) oxidation

Description : Bleaching action of chlorine is by - (1) decomposition (2) hydrolysis (3) reduction (4) oxidation

Last Answer : (4) oxidation Explanation: Chlorine bleaches by the process of oxidation. It needs moisture for its bleaching action. Chlorine reacts with water to form hydrochloric and hypochlorous acids.

Substances used for removing excess of chlorine from textiles after their bleaching are in general called?

Description : Substances used for removing excess of chlorine from textiles after their bleaching are in general called?

Last Answer : Antichlor

Bleaching powder contains------? A. Nitrogen B. Iodine C. Chlorine (Answer) D. Bromine

Description : Bleaching powder contains------? A. Nitrogen B. Iodine C. Chlorine (Answer) D. Bromine

Last Answer : C. Chlorine (Answer)

Bleaching action of chlorine is by----? A. Oxidation (Answer) B. Reduction C. Decomposition D. Hydrolysis

Description : Bleaching action of chlorine is by----? A. Oxidation (Answer) B. Reduction C. Decomposition D. Hydrolysis

Last Answer : A. Oxidation (Answer)

Lime water reacts with chlorine to give a) bleaching powder b) baking powder c) baking soda d) washing soda

Description : Lime water reacts with chlorine to give a) bleaching powder b) baking powder c) baking soda d) washing soda

Last Answer : a) bleaching powder

The percentage of chlorine in fresh bleaching powder is roughly (A) 50 to 60 (B) 30 to 35 (C) 40 to 50 (D) 20 to 25

Description : The percentage of chlorine in fresh bleaching powder is roughly (A) 50 to 60 (B) 30 to 35 (C) 40 to 50 (D) 20 to 25

Last Answer : (B) 30 to 35

Mostly used coagulant, is (A) Chlorine (B) Alum (C) Lime (D) Bleaching powder

Description : Mostly used coagulant, is  (A) Chlorine  (B) Alum  (C) Lime  (D) Bleaching powder

Last Answer : (B) Alum

A rural water supply serves a population of 10, 000 at the rate of 50 litres per capita per day . For the chlorine dose of 2 PPM the required amount of bleaching powder with 20% available chlorine will be a. 0.5 kg b. 5 kg * c. 10 kg d. 15 kg

Description : A rural water supply serves a population of 10, 000 at the rate of 50 litres per capita per day . For the chlorine dose of 2 PPM the required amount of bleaching powder with 20% available chlorine will be a. 0.5 kg b. 5 kg * c. 10 kg d. 15 kg

Last Answer : b. 5 kg

SO2 pollution causes a) Plasmolysis b) Destruction of cell wall c) Destruction of Golgi bodies

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Last Answer : (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone

Which of the following is the name given to the lines of electric force which move so that its beginning traces

Description : Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative surface? A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity

Last Answer : Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative ... A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity

How many of the following species can act as both bleaching agent and reducing agent `O_(3),H_(2)O_(2),SO_(2),HCl,SO_(3)`

Description : How many of the following species can act as both bleaching agent and reducing agent `O_(3),H_(2)O_(2),SO_(2),HCl,SO_(3)`

Last Answer : How many of the following species can act as both bleaching agent and reducing agent `O_(3),H_(2)O_(2),SO_(2),HCl,SO_(3)`

The most commonly used bleaching agent is?

Description : The most commonly used bleaching agent is?

Last Answer : chlorine

Which element is used as a disinfectant; as a bleaching agent and to purify water?

Description : Which element is used as a disinfectant; as a bleaching agent and to purify water?

Last Answer : Chlorine

Element used as bleaching agent?

Description : Element used as bleaching agent?

Last Answer : Chlorine

The element used as a bleaching agent?

Description : The element used as a bleaching agent?

Last Answer : Chlorine