Acids, bases, and salts are fundamental chemical substances. Acids release hydrogen ions, bases release hydroxide ions, and salts are formed from the reaction between acids and bases. These compounds play key roles in chemistry, biology, and industry.
10th class chemistry chapter 2 notes
pH value normally varies from: 0-14
The water of crystallization is responsible for the: Shapes of crystals
According to Lewis concept, acid is a substance which: Can accept electron pair
Methyl orange produces which colour in basic solution: Yellow
The color of Fe(OH)2 ppt is: Brown
Which acid is used an electrolyte in lead storage battery: H2SO4
Dilute acids react with carbonates to produce the given products except: Hydrogen
Which is used to remove the grease stains from clothes: NH4OH
The value of constant of ionic product of water Kw at 25 C: 1.0 x 1014
All acids turn blue litmus: Red
You want to dry a gas which one of the following salt you will use: CaO
When acid react with carbonates and bicarbonates which gas is evolved: CO2
Formic acid is present in: String of bees
Acid reacting with metal sulphides, liberate gas: Hydrogen Sulphide
When acid reacts with sulphites and Bi sulphates which gas is evolved: SO2
Which is used for cleaning agent for domestic and commercial purpose: Na2SiO3
Lactic acid founds in: Sour milk
According to Lewis concept a base is a substance which can donate: Electron pair
What is the pOH of Ca(OH)2, 0.02 M Solution: 12.31
Which acid is found in Ant sting: Formic Acid
Which one is not an Arrhenius base: KOH
Potassium ferrocyanide salt is: complex
The meaning of latin word acidus is: Sour
A salt is not composed of: an anion of a base
Which is used to manufacture of soap: NaOH
conjugate base of HCl is: Cl
Which is a Lewis base: NH4
Which of following is not amphoteric: SO4
Basic solution have pH value: Greater than 7
Which one is not an Arrhenius acid: CO2
Uric Acid is present in: Urine
_________ is not mineral acid: CH3COOH
Jabir Bin Haiyan prepared: Hydrochloric acid
A base is a substance which neutralizes an acid which of these substances is not a base: Sodium chloride
Which of following is not conjugate base: Na+
When HCl and KOH is reacted the salt formed is: Normal
Which acid is used for etching glass: HF
Soda lime is a mixture of: NaOH + CaO
In the preparation of insoluble salts, which one of the facts is incorrect: Both of the salts produced are insoluble
Which acid is found in sour milk: Lacitc acid
_________ acid is used in lead storage batteries as electrolyte: CH3COOH
Which one is not a characteristic of an acid: it turns red litmus blue
Which one Ion is not present in salt: Anion of Base
Latin word ‘Acidus’ means: sour
According to Bronsted and Lowry concept an acid is a substance that can donate: Proton
Soda time is a mixture of: CaO and NaOH
Acid means: Sour
Phenolphthalein produces red colour in: Base
Water is a: weak electrolyte
The colour of litmus in a strong basic solution become: Blue
Lavoisier named binary compounds of oxygen acids in: 1787
If a liquid has a pH of 7 then it must: Be natural
pH of neutral solution is always: 7
The bond in the product of lewis acid base reaction: Coordinate covalent
Water of crystallization is responsible for: Shape of crystal
A salt always: Contain ions
Which one gas is liberated when alkalies react with ammonium salts: NH3
The acid which is called king of chemicals: Sulphuric Acid
Example of complex salt is: Potassium ferrocynide
A neutral salt is not composed of: Anion of base
Alkalis react with ammonium salt to liberate: NH3
The product of Lewis acid-base reaction is called adduct. The bond between the adduct species is: Co-ordinate covalent
A substance which can behave as an acid as well as a base is called: Amphoteric
Arrhenius presented his concept about acids and bases in: 1787
Which acid is used for food preservation: Benzoic acid
Acid occurring in sour milk: Lactic acid
Sum of PH and POH of a solution is: 14
What is pOH of 0.01 M solution of HCl: 12
Binary compounds of oxygen such as CO2 and SO2 were names as acids by: Lavoisier
A product of any Lewis acid base reaction is a single specie called: Adduct
__________ acid cause acidity of stomach: Hydrochloric acid
Formula of Potassium ferrocyanide: K4[Fe(CN)6]-4
Dilute acid react with carbonates the produce product except: Hydrogen gases
A reaction between an acid and base produce: Salt and water
The colour of litmus paper in strong acidic solution: Red
Acetic acid is a weak acid because it: Is not fully ionized
Citric acid is present in: Citrus fruits
Grease stains from clothes are removed by sing: Ammonium hydroxide
According to the Lewis concept acid is a substance which can: Accept a pair of electron
Uric acid is found in: Urine
Word “acid” derived from: Latin
Potassium Ferrocyanide is a: Complex salt
According to Arrhenius concept acid is a substance which dissociates in aqueous solution to give: Hydrogen ions
Malic acid founds in: Apple
Which gas is evolved when acids react with carbonates and bicarbonates: Carbon dioxide
Which of the following thing is a lewis base: NH3
Which acid is used for etching designs on copper plates: HNO3
Which base is more corrosive: NaOH
Stearic acid present in: Fats
The word acid is derived from the: Latin word
When acids react with metals which gas is evolved: H2
The reaction between an acid and a base produces: Salts and water
Acid used for cleaning metals , tanning and in printing industries, is: HCI
Which salt is used as a table salt: NaCl
Acidic solutions have pH value: Less than 7
A base is a substance which neutralizes and acid. Which of these substances is not a base: Sodium chloride
Which salt is used for the manufacture of detergents, pulp and paper: Na2SiO3
Which one of the following species is not amphoteric: SO4
All water soluble metallic oxides have characteristic of: basic
Who proved that the presence of hydrogen as the main constituent of all acids: Humphrey Davy
When Bronsted and Lowry put forward acid base concept: 1923
Arrhenius put forward acid base concept in: 1787
What is pOH of 0.01 M solution of KOH: 3
Which acid is present in our stomach: Hydrochloric acid
What is the POH of a 0.02 M Ca(OH)2: 1.397
Acids turn: Blue litmus red
Which one of the following is Lewis base: NH3
Natural source of citric acid is: Lemon
___________ is not an acid: NH3
Bronsted and Lowry presented their theories of acids and bases in: 1923
Which acid used for food preservation: CH3COOH
Lewis acid-base concept have the following characteristics except: Donation and acceptance of a proton
Acetic acid is used for: Flavouring food
A conjugate base is a specie formed by donating a: Proton
All bases turn red litmus: Blue
A conjugate acid is a specie formed by accepting a: Proton
Acids have taste: Sour
Important : Review all previous years’ 10 class past papers for comprehensive practice and better exam preparation.