Consider the following compounds : (i) sulpher dioxide (ii) hydrogen peroxide (iii) ozone Among these compounds, those which can act as bleaching agen

Consider the following compounds : (i) sulpher dioxide (ii) hydrogen peroxide (iii) ozone Among these compounds, those which can act as bleaching agen
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Consider the following compounds : (i) sulpher dioxide (ii) hydrogen peroxide (iii) ozone Among these compounds, those ... C. 1 and 2 D. 1, 2 and 3
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Consider the following compounds : (i) sulpher dioxide (ii) hydrogen peroxide (iii) ozone Among these compounds, those which can act as bleaching agen

Description : Consider the following compounds : (i) sulpher dioxide (ii) hydrogen peroxide (iii) ozone Among these compounds, those which can act as bleaching agen

Last Answer : Consider the following compounds : (i) sulpher dioxide (ii) hydrogen peroxide (iii) ozone Among these compounds, those ... C. 1 and 2 D. 1, 2 and 3

Which one among the following is used as a moderator in nuclear reactors? (1) Ozone (2) Heavy hydrogen (3) Hydrogen peroxide (4) Heavy water

Description : Which one among the following is used as a moderator in nuclear reactors? (1) Ozone (2) Heavy hydrogen (3) Hydrogen peroxide (4) Heavy water

Last Answer : (4) Heavy water Explanation: A pressurized heavy-water reactor (PHWR) is a nuclear reactor, commonly using natural uranium as its fuel, that uses heavy water (deuterium oxide D2O) as its coolant and neutron moderator.

Which one among the following is-used as a moderator in nuclear reactors? (1) Ozone (2) Heavy hydrogen (3) Heavy water (4) Hydrogen peroxide

Description : Which one among the following is-used as a moderator in nuclear reactors? (1) Ozone (2) Heavy hydrogen (3) Heavy water (4) Hydrogen peroxide

Last Answer : (3) Heavy water Explanation: Heavy water is used in certain types of nuclear reactors, where it acts as a neutron moderator to slow down neutrons so that they are more likely to react with the fissile uranium-235 than with uranium238.

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

Description : 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

Last Answer : (3) Hydrogen peroxide Explanation: Bleaching of wood pulp is the chemical processing carried out to decrease the color of the pulp, so that it becomes whiter. Alkaline hydrogen ... responsible for absorbing visible light. The decomposition of hydrogen peroxide is catalyzed by transition metals.

What is the active agent in most home (night guard) bleaching solutions? a. 2-5% carbamide peroxide b. 10 - 15% Phosphoric acid c. 10 - 15% carbamide peroxide d. 35% hydrogen peroxide e. 5 - 10% citric acid Attention:

Description : What is the active agent in most home (night guard) bleaching solutions? a. 2-5% carbamide peroxide b. 10 - 15% Phosphoric acid c. 10 - 15% carbamide peroxide d. 35% hydrogen peroxide e. 5 - 10% citric acid Attention:

Last Answer : c. 10 - 15% carbamide peroxide

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

Description : 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

Last Answer :  Hydrogen peroxide

What is true for hydrogen peroxide and ozone ?

Description : What is true for hydrogen peroxide and ozone ?

Last Answer : What is true for hydrogen peroxide and ozone ? A. `H_(2)O_(2)` acts as a ... is used in the manufacture of potassium permangnate from pyrolusite

What is true for hydrogen peroxide and ozone ?

Description : What is true for hydrogen peroxide and ozone ?

Last Answer : What is true for hydrogen peroxide and ozone ? A. `H_(2)O_(2)` acts as a ... is used in the manufacture of potassium permangnate from pyrolusite

Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen? (1) Nascent Hydrogen (2) Water (3) Hydrogen (4) Ozone

Description : Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen? (1) Nascent Hydrogen (2) Water (3) Hydrogen (4) Ozone

Last Answer : (2) Water Explanation: Hydrogen peroxide (H2O2) is a water molecule with an extra oxygen atom. It is very unstable and breaks down readily into water and a single oxygen molecule. So in nutshell, when Hydrogen peroxide readily loses active oxygen, Water is formed.

Which one of the following is used to restore the colour of old oil-paintings? (1) Ozone (2) Hydrogen peroxide (3) Barium peroxide (4) Sodium peroxide

Description : Which one of the following is used to restore the colour of old oil-paintings? (1) Ozone (2) Hydrogen peroxide (3) Barium peroxide (4) Sodium peroxide

Last Answer : (2) Hydrogen peroxide Explanation: Hydrogen peroxide (H2O2) is the simplest peroxide (a compound with an oxygenoxygen single bond). It is also a strong oxidizer. Hydrogen peroxide is a clear ... capacity of hydrogen peroxide is so strong that it is considered a highly reactive oxygen species.

Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen? (1) Nascent Hydrogen (2) Water (3) Hydrogen (4) Ozone

Description : Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen? (1) Nascent Hydrogen (2) Water (3) Hydrogen (4) Ozone

Last Answer : Water

Which one of the following is used to restore the colour of old oilpaintings ? (1) Ozone (2) Hydrogen peroxide (3) Barium peroxide (4) Sodium peroxide

Description : Which one of the following is used to restore the colour of old oilpaintings ? (1) Ozone (2) Hydrogen peroxide (3) Barium peroxide (4) Sodium peroxide

Last Answer : Hydrogen peroxide

Which gas is used in fire extinguishers? (1) Carbon dioxide (2) Nitrogen oxide (3) Carbon monoxide (4) Sulpher dioxide

Description : Which gas is used in fire extinguishers? (1) Carbon dioxide (2) Nitrogen oxide (3) Carbon monoxide (4) Sulpher dioxide

Last Answer : (1) Carbon dioxide Explanation: Sodium bicarbonate, regular or ordinary used on class B and C fires, was the first of the dry chemical agents developed. In the heat of a fire, it releases a cloud of carbon dioxide that smothers the fire.

Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Description : Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Last Answer : (4) Sodium chloride Explanation: Antiseptics are antimicrobial substances that are applied to living tissue/skin to reduce the possibility of infection, sepsis, or putrefaction. Antiseptics are generally ... the body, and from disinfectants, which destroy microorganisms found on non-living objects.

Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Description : Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? (1) Borax (2) Saltpetre (3) Hydrogen peroxide (4) Sodium chloride

Last Answer : Sodium chloride

Which among the following is a carbohydrate? (1) Nylon (2) Cane-sugar (3) Turpentine (4) Hydrogen peroxide

Description : Which among the following is a carbohydrate? (1) Nylon (2) Cane-sugar (3) Turpentine (4) Hydrogen peroxide

Last Answer : (2) Cane-sugar Explanation: Cane-sugar is carbohydrate and as this name implies, is composed of carbon, hydrogen and oxygen. it is a source of extracting sugar. There are various ... sugar most customarily used as food is sucrose, a disaccharide. Other disaccharides include maltose and lactose.

Which among the following is a carbohydrate ? (1) Nylon (2) Cane-sugar (3) Turpentine (4) Hydrogen peroxide

Description : Which among the following is a carbohydrate ? (1) Nylon (2) Cane-sugar (3) Turpentine (4) Hydrogen peroxide

Last Answer : Cane-sugar 

Which of the following is believed to be responsible for the hole in the ozone layer over Antarctic? w) carbon dioxide x) compounds containing sulfur y) radioactivity z) compounds containing chlorine

Description : Which of the following is believed to be responsible for the hole in the ozone layer over Antarctic? w) carbon dioxide x) compounds containing sulfur y) radioactivity z) compounds containing chlorine  

Last Answer : ANSWER: Z -- COMPOUNDS CONTAINING CHLORINE

Ozone depletion in the atmosphere is mainly caused by - (1) sulphur dioxide (2) nitrogen dioxide (3) hydrogen sulphide (4) chlorofluorocarbon

Description : Ozone depletion in the atmosphere is mainly caused by - (1) sulphur dioxide (2) nitrogen dioxide (3) hydrogen sulphide (4) chlorofluorocarbon

Last Answer : (4) chlorofluorocarbon Explanation: A chlorofluorocarbon (CFC) is an organic compound that contains only carbon, chlorine, hydrogen and fluorine, produced as a volatile derivative of methane and ethane. They contribute to ozone depletion in the upper atmosphere.

Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? (A) Smog & ozone (B) Hydrogen fluoride & nitrogen oxides (C) Sulphur dioxide & spray of weed killers (D) Carbon monoxide

Description : Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? (A) Smog & ozone (B) Hydrogen fluoride & nitrogen oxides (C) Sulphur dioxide & spray of weed killers (D) Carbon monoxide

Last Answer : (D) Carbon monoxide

A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it. (A) Hydrogen (B) Carbon dioxide (C) Ozone (D) None of these

Description : A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it. (A) Hydrogen (B) Carbon dioxide (C) Ozone (D) None of these

Last Answer : (C) Ozone

Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) oxygen and hydrogen x) ozone and methane y) nitrous oxide and sulfur dioxide z) methane and carbon dioxide e) ozone and carbon monoxide

Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) oxygen and hydrogen x) ozone and methane y) nitrous oxide and sulfur dioxide z) methane and carbon dioxide e) ozone and carbon monoxide

Last Answer : ANSWER: Z -- METHANE AND CARBON DIOXIDE

Ozone depletion in the atmosphere is mainly caused by (1) sulphur dioxide (2) nitrogen dioxide (3) hydrogen sulphide (4) chlorofluorocarbon

Description : Ozone depletion in the atmosphere is mainly caused by (1) sulphur dioxide (2) nitrogen dioxide (3) hydrogen sulphide (4) chlorofluorocarbon

Last Answer : chlorofluorocarbon

Role of hydrogen peroxide iin the following reaction is respectively. `(i)" " H_(2)O_(2) +O_(3) rarr H_(2)O+ZO_(2)` `(ii)" " H_(2)O_(2)+Ag_(2)Orarr Aa

Description : Role of hydrogen peroxide iin the following reaction is respectively. `(i)" " H_(2)O_(2) +O_(3) rarr H_(2)O+ZO_(2)` `(ii)" " H_(2)O_(2)+Ag_(2)Orarr Aa

Last Answer : Role of hydrogen peroxide iin the following reaction is respectively. `(i)" " H_(2)O_(2) +O_(3) rarr H_ ... in II D. oxidising in I as well as in II

Consider the following statements. 1. Ozone is an allotropic form of oxygen 2. Phosphorus is present in DNA and RNA 3. Halogens occur in free state in nature. 4. The compounds of chlorine are used as cooling agents. The correct statements are: (a) 1 and 4 (b) 2 and 4 (c) 3 and 4 (d) 1 and 2

Description : Consider the following statements. 1. Ozone is an allotropic form of oxygen 2. Phosphorus is present in DNA and RNA 3. Halogens occur in free state in nature. 4. The compounds of chlorine are used as cooling agents. The correct statements are: (a) 1 and 4 (b) 2 and 4 (c) 3 and 4 (d) 1 and 2

Last Answer : Ans:(d)

Which of the following salts do not have the water of crystalisation? (i) Bleaching Powder (ii) Plaster of Paris (iii) washing soda (iv) Baking soda (a) (ii) and (iv) (b) (i) and (iii) (c) (ii) and (iii) (d) (i) and (iv)

Description : Which of the following salts do not have the water of crystalisation? (i) Bleaching Powder (ii) Plaster of Paris (iii) washing soda (iv) Baking soda (a) (ii) and (iv) (b) (i) and (iii) (c) (ii) and (iii) (d) (i) and (iv)

Last Answer : (d) (i) and (iv)

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situs agen judi bola yang rekomended pasti bayar dimana takut kena tipu nih, share pengalamanya donk juragan.?

Description : situs agen judi bola yang rekomended pasti bayar dimana takut kena tipu nih, share pengalamanya donk juragan.?

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Transit bags must always be closed and sealed in the presence of a) The senior most Gp D of the set b) The IRM/Asst Supdt of RMS c) The HSA/Mail guard/Mail agen d) None of these

Description : Transit bags must always be closed and sealed in the presence of a) The senior most Gp D of the set b) The IRM/Asst Supdt of RMS c) The HSA/Mail guard/Mail agen d) None of these

Last Answer : c) The HSA/Mail guard/Mail agen

Why are Calcium Carbide (CaC 2 ), Carbon monoxide (CO), Carbon dioxide (CO 2 ), Hydrogen cyanide (HCN) and calcium carbonate (CaCO 3 ) classified as inorganic compounds through they contain carbon?

Description : Why are Calcium Carbide (CaC 2 ), Carbon monoxide (CO), Carbon dioxide (CO 2 ), Hydrogen cyanide (HCN) and calcium carbonate (CaCO 3 ) classified as inorganic compounds through they contain carbon?

Last Answer : These compounds contain only one or two carbon atoms per formula unit and contain no carbon-carbon (C-C) bonds or carbon-hydrogen bonds. Hence they are classified as inorganic compounds.

Bleaching powder is prepared by passing – (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Description : Bleaching powder is prepared by passing – (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

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.

Most commonly used bleaching agent is – (1) Sodium chloride (2) Alcohol (3) Carbon dioxide (4) Chlorine

Description : Most commonly used bleaching agent is – (1) Sodium chloride (2) Alcohol (3) Carbon dioxide (4) Chlorine

Last Answer : (4) Chlorine Explanation: Chlorine is used to disinfect water and is part of the sanitation process for sewage and industrial waste. During the production of paper and cloth, it is used ... in water Bleaching powder is an important and a commonly used bleaching agent prepared from chlorine.

Carbon dioxide is – (1) a reducing agent (2) an oxidising agent (3) a dehydrating agent (4) a bleaching agent

Description : Carbon dioxide is – (1) a reducing agent (2) an oxidising agent (3) a dehydrating agent (4) a bleaching agent

Last Answer : (1) a reducing agent Explanation: A good reducing agent must be able to donate electrons readily. This means that it must not have very much attraction for electrons. Carbon dioxide is just like any other oxide and can be reduced to its respective elements by applied energy.

Bleaching powder is made from - (1) Sulphur dioxide and gypsum (2) Chlorine and Charcoal (3) Soda ash and lime (4) Lime and Chlorine

Description : Bleaching powder is made from - (1) Sulphur dioxide and gypsum (2) Chlorine and Charcoal (3) Soda ash and lime (4) Lime and Chlorine

Last Answer : (4) Lime and Chlorine Explanation: The gas which is used in the preparation of bleaching powder is chlorine. It is a mixture of lime and calcium chloride.

Bleaching action of moist sulphur dioxide is because of its – (1) basic property (2) acidic property (3) oxidising property (4) reducing property

Description : Bleaching action of moist sulphur dioxide is because of its – (1) basic property (2) acidic property (3) oxidising property (4) reducing property

Last Answer : (3) oxidising property Explanation: In moist conditions, sulphur dioxide is a bleaching agent. In the reducing action of SO2, oxygen is removed from coloured dye. Sulphur dioxide is used to bleach ... Calcium hydrogen sulphite Ca(HSO3)2 is used to whiten wood pulp in the manufacturing of paper.

Bleaching of paper pulp is done with (A) Activated clay (B) Bromine (C) Chlorine or chlorine dioxide (D) Magnesium sulphite

Description : Bleaching of paper pulp is done with (A) Activated clay (B) Bromine (C) Chlorine or chlorine dioxide (D) Magnesium sulphite

Last Answer : (C) Chlorine or chlorine dioxide

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

Description : 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

Last Answer : (A) Chlorine dioxide (ClO2 )

Most commonly used bleaching agent is (1) Sodium chloride (2) Alcohol (3) Carbon dioxide (4) Chlorine

Description : Most commonly used bleaching agent is (1) Sodium chloride (2) Alcohol (3) Carbon dioxide (4) Chlorine

Last Answer : Chlorine

Bleaching powder is prepared by passing : (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Description : Bleaching powder is prepared by passing : (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Last Answer : Chlorine over slaked lime

Carbon dioxide is (1) a reducing agent (2) an oxidising agent (3) a dehydrating agent (4) a bleaching agent

Description : Carbon dioxide is (1) a reducing agent (2) an oxidising agent (3) a dehydrating agent (4) a bleaching agent

Last Answer :  a reducing agent

The gas predominantly responsible for global warming is (1) Carbon dioxide (2) Carbon monoxide (3) Nitrous oxide (4) Nitrogen peroxide

Description : The gas predominantly responsible for global warming is (1) Carbon dioxide (2) Carbon monoxide (3) Nitrous oxide (4) Nitrogen peroxide

Last Answer : (1) Carbon dioxide

You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry

Description : You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry

Last Answer : Aim: To test the nature of oxides formed by metals and non-metals. Materials Required: Sulphur powder, Mg ribbon, water, blue litmus paper, red litmus paper. Procedure: 1.Take magnesium ribbon ... the metallic oxides are basic in nature whereas most of the non-metallic oxides are acidic in nature.

Which of the following oxoacids of sulpher has -O-O- linkage ?

Description : Which of the following oxoacids of sulpher has -O-O- linkage ?

Last Answer : Which of the following oxoacids of sulpher has -O-O- linkage ? A. `H_(2)S_(2)O_(3)` B. `H_(2)S_(2)O_(5)` C. `H_(2)S_(2)O_(6)` D. `H_(2)S_(2)O_(8)`

Which of the following oxoacids of sulpher has -O-O- linkage ?

Description : Which of the following oxoacids of sulpher has -O-O- linkage ?

Last Answer : Which of the following oxoacids of sulpher has -O-O- linkage ? A. `H_(2)S_(2)O_(3)` B. `H_(2)S_(2)O_(5)` C. `H_(2)S_(2)O_(6)` D. `H_(2)S_(2)O_(8)`

In `SO_(2)` two oxygen atoms are linked to the sulpher atom through double bonds. The two `pi` bonds are

Description : In `SO_(2)` two oxygen atoms are linked to the sulpher atom through double bonds. The two `pi` bonds are

Last Answer : In `SO_(2)` two oxygen atoms are linked to the sulpher atom through double bonds. The two `pi` bonds are A. ... (pi)-p_(pi)` and one `p_(pi)-p_(pi)`

Red color of onion is caused due to the presence of - a) Zinc b) Sulpher c) Iron d) Anthocynin

Description : Red color of onion is caused due to the presence of - a) Zinc b) Sulpher c) Iron d) Anthocynin

Last Answer : d) Anthocynin

Organophosphate group insecticide example is a. Endosulphan b. Sulpher c. Carbofuran d. All of these

Description : Organophosphate group insecticide example is a. Endosulphan b. Sulpher c. Carbofuran d. All of these

Last Answer : c. Carbofuran

Organophosphate group insecticide example is a. Endosulphan b. Sulpher c. Carbofuran d. All of these

Description : Organophosphate group insecticide example is a. Endosulphan b. Sulpher c. Carbofuran d. All of these

Last Answer : c. Carbofuran

Among the following molecules, `(i)XeO_(3)(ii)XeOF_(4)(iii)XeF_(6)` those having same number of lone pairs on `Xe` are:

Description : Among the following molecules, `(i)XeO_(3)(ii)XeOF_(4)(iii)XeF_(6)` those having same number of lone pairs on `Xe` are:

Last Answer : Among the following molecules, `(i)XeO_(3)(ii)XeOF_(4)(iii)XeF_(6)` those having same number of lone pairs on ... iii) only D. (D) (i),(ii) and (iii)

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.