10th Class Chemistry Important MCQs Chapter No.2

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

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

Conjugate base of [Al (H₂0)₆]⁺³

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

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

A salt is not composed of:

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

Arrhenius concept of acid-base product is:

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

The conjugate acid of HPO₄^2- is;

2A1 + 6HCI  →  2AIC1₃+ 3 ↑

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

A salt always:

Lewis acid-base concept have the following characteristics except:

 Ca(0H)₂ dissociates to give:

Complete:    Zn + H₂SO₄  →    ?  + H₂  ↑

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

Which is used for etching designs on copper plates?

Acetic acid is used for:

HCI + H₂O    ⇌    ? + Cl^-

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

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

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

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

The water of crystallization is responsible for the:

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

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

Acids react explosively with metals;

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

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

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

Conjugate base of H₂SO₄is:

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

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

Which one of the following species is not amphoteric?

Conjugate base of an acid CH₃COOH:

All are characteristics of bases except:

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

A reaction between an acid and a base produces:

Which one is not the characteristic of an acid?

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

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

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

The world acid is derived from the Latin word:

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:

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

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

Arrhenius acid are:

Amphoteric substances are those which behave as:

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

Limitation of Arrhenius concept is:

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

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

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

Which one is not Lewis base?

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

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

Which one of the following is a Lewis base?

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

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

Complete the reaction :    FeS + H₂SO₄    →     FeSO₄ + ?

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

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

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

Which ion is the conjugate base of sulphuric acid?

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

Which one is mineral acid?

What 1% the pOH of a 0.02M Ca(OH)₂ ?

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

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