Chemistry 10TH MCQs Past Paper Multan Board 2022 QUIZ

1 / 12

Nitrogen and hydrogen were reacted together to make ammonia. Kc = 2.86 mol² dm⁻⁶. What will be present in the equilibrium mixture?

(A) NH₃ only

(B) N₂, H₂ & NH₃

(C) N₂ & H₂ only

(D) H₂ only

2 / 12

The conjugate base of H₃PO₄ is:

(A) H₂PO₄⁻

(B) HPO₄²⁻

(C) PO₄³⁻

(D) H₄PO₄

3 / 12

Which one of the given is not a fossil fuel?

(A) Coal

(B) Natural gas

(C) Biogas

(D) Petroleum

4 / 12

The functional group -COOH is found in:

(A) Carboxylic acids

(B) Aldehydes

(C) Alcohols

(D) Esters

5 / 12

Oxidation of alkenes produces:

(A) Glyoxal

(B) Oxalic acid

(C) Formic acid

(D) Glycol

6 / 12

The photosynthesis process produces:

(A) Starch

(B) Cellulose

(C) Sucrose

(D) Glucose

7 / 12

Earth's atmosphere comprises 99% by volume of two gases. They are:

(A) Nitrogen and ozone

(B) Nitrogen and oxygen

(C) Carbon dioxide & Oxygen

(D) Argon & Oxygen

8 / 12

Which is not an air pollutant?

(A) NO₂

(B) SO₂

(C) CO

(D) N₂

9 / 12

Depending upon temperature variation, the atmosphere is divided into how many regions?

(A) One

(B) Two

(C) Four

(D) Three

10 / 12

Water dissolves non-ionic compounds by:

(A) Ion-ion forces

(B) Ion-dipole forces

(C) Dipole-dipole forces

(D) Hydrogen bonding

11 / 12

A disease that causes bone and tooth damage is:

(A) Fluorosis

(B) Hepatitis

(C) Cholera

(D) Jaundice

12 / 12

Crude oil is heated in the furnace up to:

(A) 350 °C

(B) 400 °C

(C) 450 °C

(D) 500 °C

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