Chemistry In Everyday Life(11th And 12th > Chemistry ) Questions and answers for exam Preparation

11th And 12th > Chemistry

CHEMISTRY IN EVERYDAY LIFE MCQs

Total Questions : 30 | Page 1 of 3 pages

Statement 1: Dettol is an antibiotic.
Statement 2: Antibiotics are used to kill microorganisms.

Only statement 1 is correct
Only statement 2 is correct
Both statements are correct
Both statements are incorrect

Discuss Question

Answer: Option B. -> Only statement 2 is correct
:
B
Antibiotics are used to kill bacteria and microorganisms. They are usually taken orally or injected.
Antiseptics are used just to inhibit or prevent bacterial growth and not to kill them. They are used by applying on the skin. Dettol is antiseptic.

Question 2.

Which of the following represents soap

$C_{17} H_{35} C O O K$
$C_{17} H_{35} C O O H$
$C_{15} H_{31} C O O H$
$(C_{17} H_{35} C O O)_{2} C a$

Discuss Question

Answer: Option A. ->

C_{17} H_{35} C O O K

:
A

Soaps are sodium or potassium salts of long chain fatty acids.

Question 3.

Which of the followings is correct about birth control pills?

It contains only estrogen derivatives
It contains only progesterone derivative
It contains both estrogen and progesterone derivatives
It does not contain any of estrogen or progesterone

Discuss Question

Answer: Option C. -> It contains both estrogen and progesterone derivatives
:
C

Birth control pills essentially contain a mixture of synthetic estrogen and progesterone derivatives.

Question 4.

Beverage companies aim to provide zero calorie soft drinks through their products such as Diet Coke or Diet Pepsi. Which of the followings can’t be constituents of these soft drinks –

Aspartame
Sucrose
Sucralose
Alitame

Discuss Question

Answer: Option B. -> Sucrose
:
B

Except Sucrose, all are artificial sweetener and provide negligible calories. Also these sweeteners are multiple times sweeter than cane sugar. So, they are used in very small quantity.

Question 5.

Which of the followings artificial sweeteners has the highest sweetness?

Aspartame
Saccharin
Sucralose
Alitame

Discuss Question

Answer: Option D. -> Alitame
:
D

\begin{matrix} Sweetener & Aspartame & Saccharin & Sucralose & Alitame Sweetness value compared to cane sugar & 100 & 550 & 600 & 2000 \end{matrix}

Question 6.

Which statement is false

Some disinfectants can be used antiseptics at low concentration
Sulphadiazine is a synthetic antibacterial
Ampicillin is a natural antibiotic
Aspirin is analgesic and antipyretic both

Discuss Question

Answer: Option C. -> Ampicillin is a natural antibiotic
:
C

Ampicillin is a synthetic antibiotic.

Question 7.

Assertion (A): Aspartame is sweeter than cane sugar but it is not used in normal cooking.
Reason (R): The control of sweetness of food is very difficult while using Aspartame.

Both A and R are true and R is a correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true

Discuss Question

Answer: Option B. -> Both A and R are true but R is not a correct explanation of A
:
B

Aspartame is 100 times sweeter than cane sugar. Aspartame is not stable at normal cooking temperature and that’s why it is not used in normal cooking.

Question 8.

The formulation of Dettol contains