10th Class Chemistry Important MCQs Chapter No.2

Conjugate base of H₂SO₄is:

You want to dry a gas which one of the following salt you will use:

Acetic acid is used for:

Which one is mineral acid?

Dilute acids (HCI, H₂SO₄) react moderately with reactive metals like Mg, Zn, Fe and Al with evolution of:

Which acid is used for cleaning metals, tanning and in printing industries?

In the preparation of insoluble salts, which one of the facts is incorrect?

The product of Lewis acid-base reaction is called adduct. The bond between the adduct specie is:

HCI + H₂O    ⇌    ? + Cl^-

Binary compounds of oxygen such as CO₂ and SO₂ on dissolution in water gave acidic solutions, named acids by :

Acids react with carbonates and bicarbonate to form corresponding salts with evolution of:

The water of crystallization is responsible for the:

According to the Lewis concept, acid is a substance which can:

Which one is not Lewis base?

A specie formed by donating a proton by an acid is called:

Dilute acids react with carbonates to produce the given products except:

According to Davy's concept the acid without oxygen is:

The world acid is derived from the Latin word:

If a liquid has a pH of 7 then it must:

According to Lewis, an acid is a substance which accept:

All the organic and inorganic compounds are classified into.....

Base is a substance which can donate a pair of electrons.

According, to Lewis, a species can act as acid..

Which one of the following is a Lewis base?

A little concentration of the acid present in our stomach which breaks down the food is

According to Arrhenius concept of acid, acid is the substance which dissociates in aqueous solution to give.

Ferric hydroxide Fe(OH)₃ is precipitated out of solution when aqueous sodium hydroxide solution is added to ferric chloride (FeCI₃)

FeCl_3(aq) +  3NaOH_(aq)   →       Fe(OH)₃ (s) 3NaCl_(aq)

Colour of the precipitate is:

Conjugate base of [Al (H₂0)₆]⁺³

Which is used for etching designs on copper plates?

2A1 + 6HCI  →  2AIC1₃+ 3 ↑

Which ion is the conjugate base of sulphuric acid?

A reaction between an acid and a base produces:

Acids react with bases to form salts and water. This process is called:

Arrhenius acid are:

Given K_w = [Hi [OH^-] = 1x10^-14 at 25°C:

What is the concentration of H+ in pure water at 25°C?

The conjugate acid of HPO₄^2- is;

Which one is not the characteristic of an acid?

A base is a substance which neutralizes an acid. Which of these substances is not a base?

Complete:    Zn + H₂SO₄  →    ?  + H₂  ↑

A specie formed by accepting a proton by a base is called:

A salt is not composed of:

A salt always:

Amphoteric substances are those which behave as:

Nitric acid (HNO₃), sulphuric acid (H₂SO₄) and hydrochloric acid (HCI) are prepared by:

Which one is used for manufacture of fertilizers, ammonium sulphates. calcium superphosphate, explosive, paints, dyes, drugs, an electrolyte in lead storage batteries:

What 1% the pOH of a 0.02M Ca(OH)₂ ?

Limitation of Arrhenius concept is:

Complete the reaction :    FeS + H₂SO₄    →     FeSO₄ + ?

Acids form salts with liberation of sulphur dioxide gas when react with:

Complete it:     2NaHCO₃+ H₂SO₄   →   ? + 2CO₂ ↑ + 2H₂O

The product of any Lewis acid-base reaction is a single specie called.

Lewis acid-base concept have the following characteristics except:

Arrhenius and Bronsted-Lowry concept of acids and bases are limited to substances which contain:

Which one of the following species is not amphoteric?

The first acid was known to man in the form of vinegar is:

Acids react with bases to form salts and water. This process is called:

Acid is a substance which dissociates in aqueous solution to give hydrogen ions.

A substance that can accept a proton (H+) from another substance is called:

All are characteristics of bases except:

Complete the reaction    NaHSO₃ + HCI    →       NaCI + ? ↑+ H₂O

 Ca(0H)₂ dissociates to give:

Arrhenius concept of acid-base product is:

Complete the reaction:   CaSO₃ + 2HCl  →  CaCl₂ + ? + H₂O

According to Bronsted-Lowry concept, an acid is a substance which donates:

Conjugate base of an acid CH₃COOH:

Complete it:   ? + 2HCI  → CaCl₂ + CO₂ ↑ + H₂O

Acids react explosively with metals;

According to Sir Humphrey Davy there are certain acid which are without.

According to Bronsted-Lowry concept product of acid and base is: