Chemistry · Science General

Common Chemical Compounds and Reactions

1,204 Questions

Common chemical compounds and reactions questions test your knowledge of everyday chemicals, their formulas, and their interactions. Topics include properties of acids and bases, hard water chemistry, and compounds like baking soda and plaster of paris. This section is essential for general science preparation.

Acids and basesPlaster of parisHard water chemistryCommon chemical formulasEveryday chemical reactions

Common Chemical Compounds and Reactions Questions

Multiple choice chemistry element, compound and mixture different types of solutions various mixtures introduction to solutions

Which of the following are true solutions?

  1. ENO salt in water

  2. Tomato soup

  3. Aam panna

  4. Filtered black tea
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A true solution is a homogeneous mixture where the solute particles are completely dissolved and invisible to the naked eye. ENO salt (effervescent salts) dissolved in water creates a true solution, whereas the others are colloids or suspensions.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

Which of the following is not a use of baking soda?

  1. In medicines as antacid

  2. As a component of baking powder

  3. In removing permanent hardness of water

  4. In fire extinguishers
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Baking soda,$(NaHCO _3)$ also known as sodium bicarbonate, is widely used in baking. This is because it has leavening properties, meaning it causes dough to rise by producing carbon dioxide. Aside from cooking, baking soda has a variety of additional household uses and health benefits.

They are-
  • In medicines as antacid
  • As a component of baking powder
  • In fire extinguishers
  • Relieves insect bites
  • Relieves skin irritation
  • Air Freshener
  • Hence, option C is wrong about baking soda as it is not used in removing permanent hardness of water.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

Which of the following is known as fusion mixture?

  1. mixture of $Na _{2}CO _{3}+NaHCO _{3}$
  2. $Na _{2}CO _{3}+10H _{2}O$
  3. mixture of $K _{2}CO _{3}+Na _{2}CO _{3}$
  4. $NaHCO _{3}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A fusion mixture consists of a sodium salt and a potassium salt. Generally, mixture of potassium carbonate and sodium carbonate is used. It is called a fusion mixture because it is fused with a sample of organic compound to test for various groups.

Hence option C having both sodium carbonate and potassium carbonate is the correct answer.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

Baking powder contains :

  1. $NaHCO _{3}, Ca(H _{2}PO _{2}) _{2}$ and starch
  2. $NaHCO _{3}, Ca(H _{2}PO _{2}) _{2}$
  3. $NaHCO _{3}$, starch
  4. $NaHCO _{3}$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Baking powders contains sodium bicarbonate and one or more acid salts. Usually 30% sodium bicarbonate, 5-12% monocalcium phosphate, and 21-26% sodium aluminium sulfate and starch.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

The baking soda formula is :

  1. $K _{2}CO _{3}$
  2. $NaHCO _{3}$

  3. both a and b

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Its chemical formula is $NaHCO _3$(sodium bicarbonate). Its formula consists of one sodium (Na) atom, one hydrogen (H) atom, one carbon (C) atom and three oxygen (O) atoms. It is commonly known as baking soda, bread soda, bicarbonate of soda, and cooking soda.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

$NaHCO _3$ represent the formula of which one of the following? 

  1. Sodium carbonate

  2. Baking soda

  3. Sodium acetate

  4. Washing soda
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

${ NaHCO } _{ 3 }$ is sodium bicarbonate or known as sodium hydrogen carbonate. Sodium bicarbonate is a white solid that appears as fine powder. It has a slightly salty, alkaline taste resembling that of sodium carbonate(washing soda). It is also known as baking soda or cooking soda. 

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

Baking powder contains baking soda and : 

  1. potassium hydrogen tartarate

  2. calcium bicarbonate

  3. sodium carbonate

  4. vinegar
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Baking powder is dry chemical leavening agent a mixture of carbonate or bicarbonate and a weak acid. A typical acid in such formulations is cream of tartar derivative of tartaric acid. Commercially it is sodium bicarbonate.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

Sodium sesquicarbonate is 

  1. $\displaystyle Na _{2}CO _{3}NaHCO _{3}$

  2. a double salt

  3. trisodium hydrogen discrabonate

  4. water softner
Reveal answer Fill a bubble to check yourself
A,B,C,D Correct answer
Explanation
Sodium sesquicarbonate (Systematic name trisodium hydrogendicarbonate) $Na _3H(CO _3) _2$ is a double salt of sodium bicarbonate and sodium carbonate($\displaystyle Na _{2}CO _{3}NaHCO _{3}$), and has a needle-like crystal structure. However, the term is also applied to an equimolar mixture of those two salts, with whatever water of hydration the sodium carbonate includes, supplied as a powder.
odium sesquicarbonate is used in bath salts, swimming pools, as an alkalinity source for water treatment.
Hence options A,B,C & D are correct.
Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

The element which is not common between the compounds called baking soda and soda ash is:

  1. nitrogen

  2. hydrogen

  3. oxygen

  4. sulphur
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Baking soda formula is $NaHCO _3$.

Soda ash formula is $Na _2CO _3$.
So, hydrogen atom $(H)$ is not common between the compounds of baking soda and soda ash.
So, the answer is $B$.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

Baking soda is a/an:

  1. acidic substance

  2. basic substance

  3. neutral substance

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Baking soda is sodium bicarbonate or sodium hydrogen carbonate. It has slightly salty, alkaline taste resembling that of washing soda. Its alkalinity in aqueous solution is because of formation of carbonic acid and hydroxide ion.
${ HCO } _{ 3 }^{ - }+{ H } _{ 2 }O\rightarrow { H } _{ 2 }{ CO } _{ 3 }+{ OH }^{ - }$

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is:

  1. acetic acid

  2. oxalic acid

  3. carbonic acid

  4. tartaric acid
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tartaric acid used in baking powder where it serves as the source of acid that reacts with baking soda. This reaction produces carbon dioxide gas and lets products rise using active yeast cultures as a source of carbon dioxide gas.

Multiple choice chemistry substances in common use preparation, properties and uses of baking soda chemical from common salt compounds of carbon

Baking powder contains Sodium Hydrogen Carbonate, and__________.

  1. tartaric acid

  2. sodium carbonate

  3. calcium chloride

  4. acetic acid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Baking powder contains Sodium Hydrogen Carbonate $NaHCO _3$, and tartaric acid. It is used for increasing the volume and lightening the texture of baked goods. It releases carbon dioxide gas into a batter or dough through an acid-base reaction, causes bubbles in the wet mixture which expands and thereby  leavening the mixture.