Consider the following and select the right option. (1) Stomach - Hydrochloric acid (2) Ant - formic acid (3) Both are right (4) Both are wrong

Consider the following and select the right option. (1) Stomach - Hydrochloric acid (2) Ant - formic acid (3) Both are right (4) Both are wrong
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(3) Both are right Explanation: Hydrochloric acid is naturally found in the gastric juices of the stomach. It is secreted through the parietal cells of the stomach.
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Name the acid present in Ant sting and its chemical formula. (a) Methanoic acid and HCOOH (b) Formic acid and HCOOH (c) Acetic acid and CH3COOH (d) Both a and b

Description : Name the acid present in Ant sting and its chemical formula. (a) Methanoic acid and HCOOH (b) Formic acid and HCOOH (c) Acetic acid and CH3COOH (d) Both a and b

Last Answer : (d) Both a and b

Sour taste of 'Coca Cola' is due to the presence of – (1) acetic acid (2) phosphoric acid (3) hydrochloric acid (4) formic acid

Description : Sour taste of 'Coca Cola' is due to the presence of – (1) acetic acid (2) phosphoric acid (3) hydrochloric acid (4) formic acid

Last Answer : (2) phosphoric acid Explanation: Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas, but not without controversy regarding its ... usually fermented by Aspergillusniger mold from scrap molasses, waste starch hydrolysates and phosphoric acid.

Sour taste of ‘Coca Cola’ is due to the presence of (1) acetic acid (2) phosphoric acid (3) hydrochloric acid (4) formic acid

Description : Sour taste of ‘Coca Cola’ is due to the presence of (1) acetic acid (2) phosphoric acid (3) hydrochloric acid (4) formic acid

Last Answer : phosphoric acid 

The Latin word formica means ant. The name formic acid is derived from this Latin word because?

Description : The Latin word formica means ant. The name formic acid is derived from this Latin word because?

Last Answer : this acid was first obtained by the distillation of ants

Sting of ant can be cured by rubbing the affected area with soap because (a) it contains oxalic acid which neutralises the effect of formic acid (b) it contains aluminium hydroxide which neutralises the effect of formic acid (c) it contains sodium hydroxide which neutralises the effect of formic acid (d) none of these

Description : Sting of ant can be cured by rubbing the affected area with soap because (a) it contains oxalic acid which neutralises the effect of formic acid (b) it contains aluminium hydroxide which neutralises ... (c) it contains sodium hydroxide which neutralises the effect of formic acid (d) none of these

Last Answer : (c) it contains sodium hydroxide which neutralises the effect of formic acid

An ant‘s sting can be treated with ............which will neutralise the effect of the chemical injected by the ant‘s sting into our skin. (a). Methanoic acid (b). formic acid (c). Baking soda (d). Caustic soda

Description : An ant‘s sting can be treated with ............which will neutralise the effect of the chemical injected by the ant‘s sting into our skin. (a). Methanoic acid (b). formic acid (c). Baking soda (d). Caustic soda

Last Answer : (c). Baking soda

Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of (A) Nitric acid (B) Hydrochloric acid (C) Methyl alcohol (D) Formic acid

Description : Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of (A) Nitric acid (B) Hydrochloric acid (C) Methyl alcohol (D) Formic acid

Last Answer : (A) Nitric acid

Consider the following and select the right option. (1) Oncology - study of cancer (2) Dermatology - study of skin diseases (3) Both are right (4) Both are wrong

Description : Consider the following and select the right option. (1) Oncology - study of cancer (2) Dermatology - study of skin diseases (3) Both are right (4) Both are wrong

Last Answer : (3) Both are right Explanation: Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of cancer.

The acid which is secreted by the glands in the stomach wall is – (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) phosphoric acid

Description : The acid which is secreted by the glands in the stomach wall is – (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) phosphoric acid

Last Answer : (2) hydrochloric acid Explanation: Gastric acid is a digestive fluid, formed in the stomach. It has a pH of 1.5 to 3.5 and is composed of hydrochloric acid (HCl) (around 0.5%, ... enzymes, and making ingested proteins unravel so that digestive enzymes can break down the long chains of amino acids.

The acid which is secreted by the glands in the stomach wall is (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) phosphoric acid

Description : The acid which is secreted by the glands in the stomach wall is (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) phosphoric acid

Last Answer : hydrochloric acid

Which of the options in the given table are correct? Option | Natural Source | Acid Present (i) Orange | Oxalic acid (ii) Sour milk | Lactic acid (iii) Ant sting | Methanoic acid (iv) Tamarind | Acetic acid (a) (i) and (ii) (b) (i) and (iv) (c) (ii) and (iii) (d) (ii) and (iv)

Description : Which of the options in the given table are correct? Option | Natural Source | Acid Present (i) Orange | Oxalic acid (ii) Sour milk | Lactic acid (iii) Ant sting | Methanoic acid (iv) Tamarind | Acetic acid (a) (i) and (ii) (b) (i) and (iv) (c) (ii) and (iii) (d) (ii) and (iv)

Last Answer : Answer: (c)

(a) What is the role of hydrochloric acid in our stomach ? -Science

Description : (a) What is the role of hydrochloric acid in our stomach ? -Science

Last Answer : Hydrochloric acid: It makes the medium of gastric juice acidic so that the enzyme pepsin can digest the proteins properly and also kills any bacteria that might have entered the stomach with food.

If the stomach did not produce any hydrochloric acid, which enzyme will not function? (1) Ptyalin (2) Rennin (3) Pepsin (4) Lipase

Description : If the stomach did not produce any hydrochloric acid, which enzyme will not function? (1) Ptyalin (2) Rennin (3) Pepsin (4) Lipase

Last Answer : (3) Pepsin Explanation: Hydrochloric acid converts pepsinogen into an enzyme called pepsin. When food enters the stomach, hydrochloric acid production increases and the pH may fall to as low as 1 or 2, a very acidic condition.

Which of the following acids is synthesized in human stomach? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Phosphoric acid

Description : Which of the following acids is synthesized in human stomach? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Phosphoric acid

Last Answer : (3) Hydrochloric acid Explanation: Hydrochloric acid is sythesised in human stomach.

Which acid is present in the stomach of humans? (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) citric acid

Description : Which acid is present in the stomach of humans? (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) citric acid

Last Answer : (2) hydrochloric acid Explanation: Hydrochloric acid is naturally produced by cells in our bodies to help digest food in the stomach.

Hydrochloric acid is secreted by the cells lining the – (1) Oral cavity (2) Stomach (3) Ileum (4) Colon

Description : Hydrochloric acid is secreted by the cells lining the – (1) Oral cavity (2) Stomach (3) Ileum (4) Colon

Last Answer : (2) Stomach Explanation: The chief cells of the stomach secrete enzymes for protein breakdown (inactive pepsinogen and rennin). Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis.

Hydrochloric acid is secreted by the cells lining the (1) Oral cavity (2) Stomach (3) Ileum (4) Colon

Description : Hydrochloric acid is secreted by the cells lining the (1) Oral cavity (2) Stomach (3) Ileum (4) Colon

Last Answer : Stomach

Which of the following acids is synthesized in human stomach ? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Phosphoric acid

Description : Which of the following acids is synthesized in human stomach ? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Phosphoric acid

Last Answer : Hydrochloric acid

Select the right option from the given alternatives. Smear : Libel :: Heed : ________ (a) Represent (b) Doubt (c) Consider (d) Need

Description : Select the right option from the given alternatives. Smear : Libel :: Heed : ________ (a) Represent (b) Doubt (c) Consider (d) Need

Last Answer : Ans: c) consider 

Consider the following statements. (A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the correct option. (a) (A) is false but (B) is true. (b) Both (A) and (B) are true. (c) (A) is true but (B) is false. (d) Both (A) and (B) are false

Description : Consider the following statements. (A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the ... ) (A) is true but (B) is false. (d) Both (A) and (B) are false

Last Answer : (d) Both (A) and (B) are false.

Vinegar is _____. (1) diluted acetic acid (2) glacial acetic acid (3) glacial formic acid (4) diluted formic acid

Description : Vinegar is _____. (1) diluted acetic acid (2) glacial acetic acid (3) glacial formic acid (4) diluted formic acid

Last Answer : (1) diluted acetic acid Explanation: Vinegar is mostly dilute acetic acid, often produced by fermentation and subsequent oxidation of ethanol. It is roughly 3- 9% acetic acid by volume, making acetic acid the main component of vinegar apart from water.

Which one of the following is found in Vinegar? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Description : Which one of the following is found in Vinegar? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Last Answer : (1) Acetic acid Explanation: Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. It is mainly used as a cooking ingredient.

The acid which fails to liberate carbon dioxide from sodium bicarbonate is : (1) Acetic acid (2) Formic acid (3) Carbonic acid (4) Sulphuric acid

Description : The acid which fails to liberate carbon dioxide from sodium bicarbonate is : (1) Acetic acid (2) Formic acid (3) Carbonic acid (4) Sulphuric acid

Last Answer : (4) Sulphuric acid Explanation: Sodium bicarbonate and organic acid (Formic acid, Acetic acid, Carbonic acid, etc) react vigorously to liberate carbon dioxide. For example, Sodium bicarbonate (NaHCO3) when treated with acetic acid reacts vigorously to liberate carbon dioxide.

Formic acid is produced by – (1) White ants (2) Cockroaches (3) Red ants (4) Mosquitoes

Description : Formic acid is produced by – (1) White ants (2) Cockroaches (3) Red ants (4) Mosquitoes

Last Answer : (3) Red ants Explanation: Formic acid (HCO2H) occurs naturally, most notably in some ants. The word "formic" comes from the Latin word for ant, formica, referring to its early isolation by ... compound that causes most of the irritation that occurs immediately following an ant bite or a bee sting.

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 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.

The order of increasing acidity is :(a) chloroacetic acid > formic acid > benzoic acid(b) benzoic acid > formic acid > chloroacetic acid(c) all are the same(d) not determinable from available data

Description : The order of increasing acidity is : (a) chloroacetic acid > formic acid > benzoic acid (b) benzoic acid > formic acid > chloroacetic acid (c) all are the same (d) not determinable from available data

Last Answer : chloroacetic acid > formic acid > benzoic acid

Which of the following compounds is most acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Description : Which of the following compounds is most acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Last Answer : Formic acid

Which of the following compounds is least acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Description : Which of the following compounds is least acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Last Answer : Ethanol

Ozonolysis of benzene gives (a) Formic acid (b) Glyoxal (c) Formaldehyde (d) Glycine

Description : Ozonolysis of benzene gives (a) Formic acid (b) Glyoxal (c) Formaldehyde (d) Glycine

Last Answer : Glyoxal

Which of the following compounds will react with Tollens' reagent to give metallic silver? (a) Formic acid (b) Ethyl alcohol (c) Acetic acid (d) Acetone

Description : Which of the following compounds will react with Tollens' reagent to give metallic silver? (a) Formic acid (b) Ethyl alcohol (c) Acetic acid (d) Acetone

Last Answer : Formic acid

Propanenitrile undergoes acid-hydrolysis to give (a) Formic acid(b) Propionic acid(c) Acetic acid(d) Butyric acid

Description : Propanenitrile undergoes acid-hydrolysis to give (a) Formic acid (b) Propionic acid (c) Acetic acid (d) Butyric acid

Last Answer : Propionic acid

Which of the following statements is false about the acid-strength of acetic acid? (a) Acetic acid is a stronger acid than monochloroacetic acid(b) Acetic acid is a stronger acid than propionic acid. (c) Acetic acid is a weaker acid than trichloroacetic acid. (d) Acetic acid is a weaker acid than formic acid.

Description : Which of the following statements is false about the acid-strength of acetic acid? (a) Acetic acid is a stronger acid than monochloroacetic acid. (b) Acetic acid is a stronger acid than propionic acid. ... is a weaker acid than trichloroacetic acid. (d) Acetic acid is a weaker acid than formic acid

Last Answer : Acetic acid is a stronger acid than monochloroacetic acid

Vinegar is a (a) 5% solution of acetic acid in water (b) 25% solution of acetic acid in water (c) 50% solution of acetic acid in water (d) 40% solution of formic acid in water

Description : Vinegar is a (a) 5% solution of acetic acid in water (b) 25% solution of acetic acid in water (c) 50% solution of acetic acid in water (d) 40% solution of formic acid in water

Last Answer : 5% solution of acetic acid in water

Check the incorrect statement : (a) Acetic acid is present in sour milk (b) Formic acid is present in insect bites (c) Tartaric acid is present in grapes (d) Citric acid is a tricarboxylic acid

Description : Check the incorrect statement : (a) Acetic acid is present in sour milk (b) Formic acid is present in insect bites (c) Tartaric acid is present in grapes (d) Citric acid is a tricarboxylic acid

Last Answer : Acetic acid is present in sour milk

Ethylene glycol undergoes oxidation with hot acidic KMnO4 to form : (a) Formic acid (b) Formaldehyde(c) Acetic acid(d) Acetaldehyde

Description : Ethylene glycol undergoes oxidation with hot acidic KMnO4 to form : (a) Formic acid (b) Formaldehyde (c) Acetic acid (d) Acetaldehyde

Last Answer : Formic acid

Ethylene oxide undergoes acid-hydrolysis to form (a) Ethylene glycol (b) Formic acid (c) Ethyl alcohol (d) Acetic acid

Description : Ethylene oxide undergoes acid-hydrolysis to form (a) Ethylene glycol (b) Formic acid (c) Ethyl alcohol (d) Acetic acid

Last Answer : Ethylene glycol

n-Propylmagnesium bromide on treatment with carbon dioxide and further hydrolysis gives : (a) Acetic acid (b) Propanoic acid (c) Butanoic acid (d) Formic acid

Description : n-Propylmagnesium bromide on treatment with carbon dioxide and further hydrolysis gives : (a) Acetic acid (b) Propanoic acid (c) Butanoic acid (d) Formic acid

Last Answer : Butanoic acid

When chloroform is heated with aqueous NaOH, it gives (a) Formic acid (b) Sodium formate (c) Acetic acid (d) Sodium acetate

Description : When chloroform is heated with aqueous NaOH, it gives (a) Formic acid (b) Sodium formate (c) Acetic acid (d) Sodium acetate

Last Answer : Sodium formate

Ozonolysis of 2-butyne gives (a) Formic acid (b) Propanoic acid (c) Acetic acid (d) Butanoic acid

Description : Ozonolysis of 2-butyne gives (a) Formic acid (b) Propanoic acid (c) Acetic acid (d) Butanoic acid

Last Answer : Acetic acid

Which of the following is a planar molecule? (a) Formaldehyde (b) Acetone (c) Formic acid (d) Acetic acid

Description : Which of the following is a planar molecule? (a) Formaldehyde (b) Acetone (c) Formic acid (d) Acetic acid

Last Answer : Formaldehyde

The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is: (1) A > C > B > D (2) B > A > D > C (3) B > D > C > A (4) A > B > C > D

Description : The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is: (1) A > C > B > D (2) B > A > D > C (3) B > D > C > A (4) A > B > C > D

Last Answer : B > A

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

Formic acid is produced by (1) White ants (2) Cockroaches (3) Red ants (4) Mosquitoes

Description : Formic acid is produced by (1) White ants (2) Cockroaches (3) Red ants (4) Mosquitoes

Last Answer : Red ants

Vinegar is __________ . (1) diluted acetic acid (2) glacial acetic acid (3) glacial formic acid (4) diluted formic acid

Description : Vinegar is __________ . (1) diluted acetic acid (2) glacial acetic acid (3) glacial formic acid (4) diluted formic acid

Last Answer : diluted formic acid

The acid which fails to liberate carbon dioxide from sodium bicarbonate is : (1) Acetic acid (2) Formic acid (3) Carbonic acid (4) Sulphuric acid

Description : The acid which fails to liberate carbon dioxide from sodium bicarbonate is : (1) Acetic acid (2) Formic acid (3) Carbonic acid (4) Sulphuric acid

Last Answer : Sulphuric acid

Which one of the following is found in Vinegar ? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Description : Which one of the following is found in Vinegar ? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Last Answer : Acetic acid 

The acid present in red ants is (1) Acetic acid (2) Butyric acid (3) Caproic acid (4) Formic acid

Description : The acid present in red ants is (1) Acetic acid (2) Butyric acid (3) Caproic acid (4) Formic acid 

Last Answer : Formic acid

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 : Acetic acid