10th Class Chemistry Important MCQs Chapter No.2

Complete the reaction :    FeS + H₂SO₄    →     FeSO₄ + ?

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

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

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

A salt always:

Complete:    Zn + H₂SO₄  →    ?  + H₂  ↑

Limitation of Arrhenius concept is:

Conjugate base of H₂SO₄is:

Acids react explosively with metals;

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

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

Arrhenius acid are:

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

Which is used for etching designs on copper plates?

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

2A1 + 6HCI  →  2AIC1₃+ 3 ↑

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

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

Conjugate base of [Al (H₂0)₆]⁺³

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

The conjugate acid of HPO₄^2- is;

Which one is not Lewis base?

 Ca(0H)₂ dissociates to give:

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

HCI + H₂O    ⇌    ? + Cl^-

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

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

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

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

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:

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

Which ion is the conjugate base of sulphuric acid?

Arrhenius concept of acid-base product is:

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

Conjugate base of an acid CH₃COOH:

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

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

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

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

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

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

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

Lewis acid-base concept have the following characteristics except:

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

The water of crystallization is responsible for the:

Which one is mineral acid?

A salt is not composed of:

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

Which one of the following species is not amphoteric?

Amphoteric substances are those which behave as:

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

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

Which one is not the characteristic of an acid?

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

What 1% the pOH of a 0.02M Ca(OH)₂ ?

Which one of the following is a Lewis base?

A reaction between an acid and a base produces:

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

Acetic acid is used for:

The world acid is derived from the Latin word:

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

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

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

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

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

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

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

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

All are characteristics of bases except:

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