Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid
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(1) Oxalic acid Explanation: Oxalic acid is a reducing agent and its conjugate base, known as oxalate is a chelating agent for metal cations. Oxalic acid's main applications include cleaning or bleaching, especially for the removal of rust, e.g. Bar Keepers Friend is an example of a household cleaner containing oxalic acid. Its utility in rust removal agents is due to its forming a stable, water soluble salt with ferric iron, ferrioxalate ion.
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Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Description : Which one of the following organic compound is used to remove stains of iron compounds? (1) Oxalic acid (2) Benzoic acid (3) Phthalic acid (4) Cinnamic acid

Last Answer :  Oxalic acid

Benzaldehyde reacts with acetic anhydride in the presence of sodium acetate at 180°C to give : (a) Mandelic acid (b) Cinnamic acid (c) Malonic acid (d) Benzoic acid

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Which of the following is used to remove ink and rust stains on cloth? (1) Oxalic acid (2) Alcohol (3) Ether (4) Kerosene oil

Description : Which of the following is used to remove ink and rust stains on cloth? (1) Oxalic acid (2) Alcohol (3) Ether (4) Kerosene oil

Last Answer : (1) Oxalic acid Explanation: Oxalic acid is a reducing agent and its conjugate base, known as oxalate, is a chelating agent for metal cations and stain removal. Oxalic acid's main applications include cleaning or bleaching, removal of stains on clothes and the removal of rust.

Which of the following is used to remove rust stains on cloth? (1) Kerosene (2) Lime (3) Oxalic acid solution (4) Petrol

Description : Which of the following is used to remove rust stains on cloth? (1) Kerosene (2) Lime (3) Oxalic acid solution (4) Petrol

Last Answer : (3) Oxalic acid solution Explanation: Oxalic acid is an organic compound with the formula H2C2O2. It is a colourless crystalline solid that dissolves in water to give colourless solutions. It is classified ... agent and its conjugate base, known as oxalate , is a chelating agent for metal cations.

Which of the following is used to remove ink and rust stains on cloth? (1) Oxalic acid (2) Alcohol (3) Ether (4) Kerosene oil

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Last Answer : Oxalic acid

Which of the following is used to remove rust stains on cloth? (1) Kerosene (2) Lime (3) Oxalic acid solution (4) Petrol

Description : Which of the following is used to remove rust stains on cloth? (1) Kerosene (2) Lime (3) Oxalic acid solution (4) Petrol 

Last Answer : Oxalic acid solution

Teryleneisa condensation polymer of ethylene glycol and which acid? (1) Benzoic Acid (2) Salicylic acid (3) Phthalic acid (4) Terephthalic acid

Description : Teryleneisa condensation polymer of ethylene glycol and which acid? (1) Benzoic Acid (2) Salicylic acid (3) Phthalic acid (4) Terephthalic acid

Last Answer : (4) Terephthalic acid Explanation: Terylene is a co-polymer of ethylene glycol and Terephthalic acid. Also known as Dacron, it is prepared by the condensation polymerization of ethylene glycerol and. ... in the presence of a catalyst consisting of a mixture of zinc acetate and antimony trioxide.

Anthracene undergoes oxidation with O2/V2O5 at 500°C to give (a) Benzoic acid (b) Anthraquinone (c) Phthalic acid (d) Benzophenone

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Naphthalene undergoes reduction with H2 in the presence of Ni catalyst at high temperature and pressure to give (a) Phthalic acid (b) Decalin (c) Benzoic acid (d) Tetralin

Description : Naphthalene undergoes reduction with H2 in the presence of Ni catalyst at high temperature and pressure to give (a) Phthalic acid (b) Decalin (c) Benzoic acid (d) Tetralin

Last Answer : Decalin

Naphthalene undergoes oxidation with Na2Cr2O7 / H2SO4 to form (a) Phthalic acid (b) Phenylacetic acid (c) Tetralin (d) Benzoic acid

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Last Answer : Phthalic acid

Terylene is a condensation polymer of ethylene glycol and which acid? (1) Benzoic Acid (2) Salicylic acid (3) Phthalic acid (4) Terephthalic acid

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Stains of rust on clothes can be removed by – (1) Oxalic acid (2) Petrol (3) Alcohol (4) H2O2

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Last Answer : (1) Oxalic acid Explanation: Rust stains can be a challenge to remove because the stain consists of tiny iron oxide particles. Acidic solutions work best for these stains. The important ingredient in these ... the iron and loosen it from the fabric, then hold it in suspension in the wash water.

Stains of rust on clothes can be removed by : (1) Oxalic acid (2) Petrol (3) Alcohol (4) H2O2

Description : Stains of rust on clothes can be removed by : (1) Oxalic acid (2) Petrol (3) Alcohol (4) H2O2

Last Answer : Oxalic acid

Which of these acids is not organic in origin? (1) Lactic acid (2) Sulphuric acid (3) Citric acid (4) Oxalic acid

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Last Answer : Sulphuric acid

Benzoyl chloride reacts with hydrogen in the presence of palladium and barium sulfate to give : (a) Benzyl alcohol (b) Benzaldehyde (c) Cinnamic acid (d) Benzophenone

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Arrange the following compounds in increasing order of their acid strength. Benzoic acid, 4-Nitrobenzoic acid, 3, 4-dinitrobenzoic acid, 4-methoxy benzoic acid.

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Which acid is used to remove ink and rust stains and cloth? -Do You Know?

Description : Which acid is used to remove ink and rust stains and cloth? -Do You Know?

Last Answer : answer:

Which acid is used to remove ink and rust stains and cloth?

Description : Which acid is used to remove ink and rust stains and cloth?

Last Answer : Oxalic acid

Which acid is used to remove stains from clothes?

Description : Which acid is used to remove stains from clothes?

Last Answer : Ammonium hydroxide

1. How can a Change in distribution of powers between the Centre and the States be done? 2. Which acid is used to remove ink and rust stains and cloth? 3. Which forms the largest share of deficit in Govt. of India budget? 4. 97% of the atmosphere lies with in howmany kilometers of the surface of the earth? 5. By virtue of which Act, dyarchy was introduced in India?

Description : 1. How can a Change in distribution of powers between the Centre and the States be done? 2. Which acid is used to remove ink and rust stains and cloth? 3. Which forms the largest share of deficit ... ? 19. Which states is the leading producer of tea? 20. Who was a contemporary of Chinghiz Khan?

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Organic compounds sometimes adjust their electronic as well as steric structure to attain stability. Among the following, the compound having highest

Description : Organic compounds sometimes adjust their electronic as well as steric structure to attain stability. Among the following, the compound having highest

Last Answer : Organic compounds sometimes adjust their electronic as well as steric structure to attain stability. Among the following, ... moment is : A. B. C. D.

What is the structural signal of oxalic acid ?

Description : What is the structural signal of oxalic acid ?

Last Answer : The structural signal of oxalic acid is ( HOOC - COOH)

______ is used for making vinegar. (1) Tartaric acid (2) Mahe acid (3) Oxalic acid (4) Acetic acid

Description : ______ is used for making vinegar. (1) Tartaric acid (2) Mahe acid (3) Oxalic acid (4) Acetic acid

Last Answer : (4) Acetic acid Explanation: Vinegar is a liquid consisting mainly of acetic acid (CH3COON) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. It is mainly used as a cooking ingredient.

Which is Known as carbolic acid? (1) Phenol (2) Ethanol (3) Acetic acid (4) Oxalic acid

Description : Which is Known as carbolic acid? (1) Phenol (2) Ethanol (3) Acetic acid (4) Oxalic acid

Last Answer : (1) Phenol Explanation: Phenol is also known as carbolic acid. It is an aromatic organic compound with the molecular formula C6H5OH. Phenol and its chemical derivatives are essential ... epoxies, Bakelite, nylon, detergents, herbicides such as phenoxy herbicides, and numerous pharmaceutical drugs.

Sour taste of lemon is due to the presence of which of the follow-ing? (1) Citric acid (2) Acetic acid (3) Oxalic acid (4) Formic acid

Description : Sour taste of lemon is due to the presence of which of the follow-ing? (1) Citric acid (2) Acetic acid (3) Oxalic acid (4) Formic acid

Last Answer : (1) Citric acid Explanation: Lemon juice is about 5% citric acid, which gives lemons a sour taste and a pH of 2 to 3. Citric acid is found in many fruits but lemon contains large quantity of ... of lemon juice makes it a key ingredient in drinks and foods such as lemonade and lemon meringue pie.

The aqueous solution of which acids is called Vinegar - (1) Citric acid (2) Hydrochloric acid (3) Acetic acid (4) Oxalic acid

Description : The aqueous solution of which acids is called Vinegar - (1) Citric acid (2) Hydrochloric acid (3) Acetic acid (4) Oxalic acid

Last Answer : (3) Acetic acid Explanation: Vinegar is an aqueous solution of acetic acid and trace chemicals that may include flavorings. Vinegar typically contains 5–20% acetic acid by volume.

Curd is sour due to presence of – (1) Tartaric acid (2) Lactic acid (3) Acetic acid (4) Oxalic acid

Description : Curd is sour due to presence of – (1) Tartaric acid (2) Lactic acid (3) Acetic acid (4) Oxalic acid

Last Answer : (2) Lactic acid Explanation: Curds are a dairy product obtained by curdling (coagulating) milk with rennet or an edible acidic substance such as lemon juice or vinegar, and then draining off the liquid ... solid masses, or curds. The remaining liquid, which contains only whey proteins, is the whey.

______ is used for making vinegar. (1) Tartaric acid (2) Malic acid (3) Oxalic acid (4) Acetic acid

Description : ______ is used for making vinegar. (1) Tartaric acid (2) Malic acid (3) Oxalic acid (4) Acetic acid

Last Answer : (4) Acetic acid Explanation: Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water.

The chief constituent of vinegar is – (1) Formic acid (2) Acetic acid (3) Salycylic acid (4) Oxalic acid

Description : The chief constituent of vinegar is – (1) Formic acid (2) Acetic acid (3) Salycylic acid (4) Oxalic acid

Last Answer : (2) Acetic acid Explanation: Vinegar is a liquid substance consisting mainly of acetic acid (CH3CO2H) and water, the acetic acid being produced through the fermentation of ethanol by acetic acid ... easily available mild acid, it had a great variety of industrial, medical, and domestic uses.

When glycerol is heated with oxalic acid at 260°C, it gives (a) 1,2-Propanediol (b) Vinyl alcohol (c) 1,3-Propanediol (d) Allyl alcohol

Description : When glycerol is heated with oxalic acid at 260°C, it gives (a) 1,2-Propanediol (b) Vinyl alcohol (c) 1,3-Propanediol (d) Allyl alcohol

Last Answer : Allyl alcohol

When ethylene glycol is heated with concentrated HNO3, it forms (a) Oxalic acid (b) Ethylene oxide (c) Dioxane (d) Diethylene glycol

Description : When ethylene glycol is heated with concentrated HNO3, it forms (a) Oxalic acid (b) Ethylene oxide (c) Dioxane (d) Diethylene glycol

Last Answer : Oxalic acid

A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number? (1) C (2) S (3) H (4) Cl

Description : A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number? (1) C (2) S (3) H (4) Cl

Last Answer : Cl

Equivalent weight of crystalline oxalic acid is [MP PMT 1995] (A) 30 (B) 63 (C) 53 (D) 45

Description : Equivalent weight of crystalline oxalic acid is [MP PMT 1995] (A) 30 (B) 63 (C) 53 (D) 45

Last Answer : (B) 63

____ is used for making vinegar. (1) Tartaric acid (2) Malic acid (3) Oxalic acid (4) Acetic acid

Description : ____ is used for making vinegar. (1) Tartaric acid (2) Malic acid (3) Oxalic acid (4) Acetic acid

Last Answer : Acetic acid

Sour taste of lemon is due to the presence of which of the following ? (1) Citric acid (2) Acetic acid (3) Oxalic acid (4) Formic acid

Description : Sour taste of lemon is due to the presence of which of the following ? (1) Citric acid (2) Acetic acid (3) Oxalic acid (4) Formic acid

Last Answer : Citric acid

Which is known as carbolic acid? (1) Phenol (2) Ethanol (3) Acetic acid (4) Oxalic acid

Description : Which is known as carbolic acid? (1) Phenol (2) Ethanol (3) Acetic acid (4) Oxalic acid 

Last Answer : Phenol

‘Vinegar’ is a commercial name of (1) Oxalic acid (2) Hydrochloric acid (3) Acetic acid (4) Citric acid

Description : ‘Vinegar’ is a commercial name of (1) Oxalic acid (2) Hydrochloric acid (3) Acetic acid (4) Citric acid 

Last Answer : Acetic acid