10th Class Chemistry Important MCQs Chapter No.2

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

Amphoteric substances are those which behave as:

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

Which one of the following is a Lewis base?

Which one is mineral acid?

Conjugate base of an acid CH₃COOH:

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

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

What 1% the pOH of a 0.02M Ca(OH)₂ ?

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

Conjugate base of [Al (H₂0)₆]⁺³

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

Arrhenius acid are:

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

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

 Ca(0H)₂ dissociates to give:

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

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

A salt always:

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

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

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

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

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

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

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

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

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

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

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

Complete:    Zn + H₂SO₄  →    ?  + H₂  ↑

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

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

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

Complete the reaction :    FeS + H₂SO₄    →     FeSO₄ + ?

Which is used for etching designs on copper plates?

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

2A1 + 6HCI  →  2AIC1₃+ 3 ↑

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

Which one is not the characteristic of an acid?

Which one is not Lewis base?

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

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

Which ion is the conjugate base of sulphuric acid?

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

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:

Lewis acid-base concept have the following characteristics except:

The world acid is derived from the Latin word:

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

Arrhenius concept of acid-base product is:

Acids react explosively with metals;

Which one of the following species is not amphoteric?

A salt is not composed of:

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

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

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

All are characteristics of bases except:

A reaction between an acid and a base produces:

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

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

Conjugate base of H₂SO₄is:

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

The conjugate acid of HPO₄^2- is;

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

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

Limitation of Arrhenius concept is:

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

The water of crystallization is responsible for the:

Acetic acid is used for:

HCI + H₂O    ⇌    ? + Cl^-