Interesting Trivia Quiz On Chemistry For 11th Grade

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1/10 Questions

What is the name given to acid + base reaction
- Physical reaction
- Neutralization reaction
- Compound reaction
- Covalent reaction

About This Quiz

Chemistry is study of matter. A very interesting subject. One of the major branches of science. It involves studying the composition and property of anything that have mass and occupy space. Chemistry is one of the pillar of science in the society. Try out this quiz to test your knowledge of Chemistry.

Interesting Trivia Quiz On Chemistry For 11th Grade - Quiz

2.

Which of the following is true?
- Acid +base= water
- Acid +base=salt
- Base +water= Acid
- Acid +Base= salt+water
Correct Answer

A. Acid +Base= salt+water

Explanation

When an acid and a base react, they undergo a chemical reaction called neutralization. In this reaction, the acid donates a proton (H+) to the base, forming water (H2O) as a product. Additionally, the remaining ions from the acid and base combine to form a salt. Therefore, the statement "Acid + Base = salt + water" is true.

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3.

Which of the following correctly rep Avogadro's constant?
- 6.02×10^23
- 6.35×10^ 34
- 6.82×10^45
- Non of the above
Correct Answer

A. 6.02×10^23

Explanation

Avogadro's constant is a fundamental constant in chemistry that represents the number of particles (atoms, molecules, ions) in one mole of a substance. The correct answer, 6.02×10^23, is the value of Avogadro's constant. This value indicates that there are approximately 6.02×10^23 particles in one mole of a substance. The other options, 6.35×10^34 and 6.82×10^45, are significantly larger and therefore do not correctly represent Avogadro's constant.

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4.

What is base?
- Oxide and hydroxide of halogens
- Oxide and peroxide of anions
- Oxide and oxyalogen of anions
- Oxide and hydroxide of metals
Correct Answer

A. Oxide and hydroxide of metals

Explanation

The correct answer is "Oxide and hydroxide of metals." This is because bases are substances that can accept protons or donate electron pairs, and they typically react with acids to form salts and water. Oxides of metals are basic in nature and can react with water to form hydroxides. Hydroxides of metals are also basic compounds. Therefore, the combination of oxides and hydroxides of metals represents the definition of a base.

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5.

Which of the following is not an example of acid?
- H2so4
- Hcl
- HNO3
- NH3
Correct Answer

A. NH3

Explanation

NH3 is not an example of an acid because it is a base. Acids are substances that release hydrogen ions (H+) when dissolved in water, while bases are substances that release hydroxide ions (OH-) when dissolved in water. NH3, also known as ammonia, does not release H+ ions but instead accepts them, making it a base.

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6.

What is an acid?
- They are substances when dissolved in water produces hydrozonion ion
- Hydroxide of metals
- Oxide of halogens
- Non of the above
Correct Answer

A. They are substances when dissolved in water produces hydrozonion ion

Explanation

An acid is a substance that, when dissolved in water, releases hydrogen ions (H+). These hydrogen ions combine with water molecules to form hydronium ions (H3O+), also known as hydroxonium ions. This is why the correct answer states that acids produce hydrozonion ions when dissolved in water.

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7.

What is the IUPAC name of HNO3
- Nitrate acid
- Nitric acid
- Nitrogen acid
- Non of the above
Correct Answer

A. Nitric acid

Explanation

The IUPAC name of HNO3 is Nitric acid. This is because the compound consists of a nitrogen atom bonded to three oxygen atoms and one hydrogen atom. The prefix "nitric" indicates the presence of nitrogen in the compound, while the suffix "acid" indicates that it is an acidic compound. Therefore, the correct IUPAC name for HNO3 is Nitric acid.

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8.

What is the IUPAC name of NaOH?
- Sodium oxalocetic
- Nitrate oxygen
- Sodium bicarbonate
- Sodium hydroxide
Correct Answer

A. Sodium hydroxide

Explanation

The IUPAC name of NaOH is Sodium hydroxide. This is because Na represents the element sodium, and OH represents the hydroxide ion. In IUPAC nomenclature, the name of a compound is derived from the elements present in it. Sodium hydroxide is a strong base commonly used in various industrial and laboratory applications.

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9.

Which of the following is a salt?
- NH3
- NH4
- Cu2SO4
- H3O
Correct Answer

A. Cu2SO4

Explanation

Cu2SO4 is a salt because it is composed of a cation (Cu2+) and an anion (SO4 2-) held together by ionic bonds. Salts are compounds formed when the hydrogen ions of an acid are replaced by metal ions or other positive ions. In Cu2SO4, the Cu2+ ion is the cation and the SO4 2- ion is the anion.

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10.

Which of the following is not an example of base?
- Naoh
- NH4
- CuO
- Cao
Correct Answer

A. NH4

Explanation

NH4 is not an example of a base because it is the chemical formula for ammonium, which is actually an example of an acid. A base is a substance that can accept or donate a pair of electrons, while an acid is a substance that can donate a proton. NH4 is an ammonium ion, which is formed when ammonia (NH3) accepts a proton (H+), making it an acid rather than a base.

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