Which substance is the most alkaline...?

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Which substance is the most alkaline...?

(A) Milk

(B) Blood

(C) Ammonia

(D) Organic juice

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What is the name of the substance which gets dissolved...?

(A) Solute

(B) Solvent

(C) Solution

(D) Mixture

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A substance which increases the efficiency of a catalyst is termed as:...?

(A) Promoter

(B) Activator

(C) Retarder

(D) Super catalyst

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Which of the following would be most useful in testing if a substance is either an acid or a base...?

(A) pH indicator strips

(B) Acid-base indicator

(C) Litmus paper

(D) Filter paper

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The solubility of a solute substance increases _____...?

(A) As the liquid cools down

(B) As the liquid becomes more concentrated

(C) As the liquid heats up

(D) As the liquid becomes more diluted

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Which of the following are made up of two or more substances that are not chemically combined...?

(A) Compounds

(B) Elements

(C) Solutions

(D) Mixtures

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The most densest substance on the Earth is __________....?

(A) Platinum

(B) Copper

(C) Steel

(D) Osmium

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When a substance is dissolved in a liquid and no new substance is formed. What will these substances are called...?

(A) Solute

(B) Solution

(C) Compound

(D) None

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The substance that are added in the soil to make up any deficiency of nutrients are called...?

(A) Pesticides

(B) Herbicides

(C) Manure

(D) Fertilizers

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Which substance expands the most; for the same rise in temperature...?

(A) Water

(B) Air

(C) Copper

(D) Class

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Which lists the substances from least to most acidic...?

(A) Blood, milk, ammonia, orange juice

(B) Blood, ammonia, milk, orange juice

(C) Milk, blood, orange juice, ammonia

(D) Ammonia, blood, milk, orange juice

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MMR vaccines are given to children to develop resistance against ____...?

(A) Malaria

(B) TB

(C) Measles

(D) Hepatitis

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The process of vaporizing a solid substance and condensing the vapours to form the solid directly is known as...?

(A) Distillation

(B) Sublimation

(C) Filtration

(D) Crystallization

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The smallest particle of any substance having all properties of that molecules is called...?

(A) An atom

(B) A molecule

(C) A compound

(D) An element

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Which of the following occurs when light passes through a substance unchanged...?

(A) Transmission

(B) Reflection

(C) Absorption

(D) Refraction

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The soapy touching property of substance are known as ____...?

(A) Acids

(B) Bases

(C) Salts

(D) Oxides

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Among the following, which substance is not a compound...?

(A) H2O

(B) Mg

(C) CO2

(D) NaCl

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A single compound breaks down to form two or more simpler substances are called...?

(A) Combination Reaction

(B) Decomposition Reaction

(C) Neutralization Reaction

(D) Addition Reaction

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A change in physical appearance or state of a substance is called ____...?

(A) Chemical Change

(B) Physical Change

(C) Nuclear Change

(D) Biological Change

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A reaction in which a new single compound is formed by the union of two or more substances is known as...?

(A) Decomposition Reaction

(B) Oxidation Reaction

(C) Addition Reaction

(D) Neutralization

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What is the substance that causes undesirable change to the environment...?

(A) Climate Change

(B) Pollution

(C) Pollutant

(D) None

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The amount of heat needed to convert a substance from liquid to gas is called...?

(A) Heat of vaporization

(B) Specific heat

(C) Latent heat of fusion

(D) All

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A substance that can donate a pair of electron to form coordinate covalent bond...?

(A) Lewis acid

(B) Lewis base

(C) Bronsted—Lowery acid

(D) Bronsted-Lowery base

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Which substance has a pH value closest to neutral...?

(A) Ammonia

(B) Blood

(C) Milk

(D) Organic juice

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Which is the hardest substance in the human body...?

(A) Tooth enamel

(B) Skull

(C) Knee cap

(D) Rib

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Substances that react with both acids and bases are called...?

(A) Conjugate acids

(B) Conjugate bases

(C) Amphoteric substances

(D) Buffers

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All of the following substances are crystalline except_____________...?

(A) Ice

(B) Diamond

(C) Sucrose

(D) Plastic

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Which cell component is a jelly-like substance that contains many chemicals and facilitates chemical reactions...?

(A) Nucleus

(B) Cell Wall

(C) Cytoplasm

(D) Cell Membrane

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Substance used in match sticks ...?

(A) Sulphur

(B) Zinc

(C) Acid

(D) Phosphorus

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Which of the following substances contain disease producing pathogens in the weakened form...?

(A) Vaccines

(B) Antibiotics

(C) Antibodies

(D) Plasmids

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A change that alters the composition of a substances is known as ____...?

(A) Physical Change

(B) Nuclear Change

(C) Chemical Change

(D) Biological Change

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What is the large organelle that fills with cell sap and contains water and dissolved substances like sugar and salt...?

(A) Nucleus

(B) Mitochondria

(C) Large Vacuole

(D) Golgi Apparatus

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A thin partially permeable layer around the animal cell which control the substances that enter and exist is called...?

(A) Cell Wall

(B) Cell Membrane

(C) Cytoplasm

(D) Nucleus

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Fertilizers are substances containing chemical elements such as manure or mixture of ______...?

(A) Lipids

(B) Carbohydrates

(C) Nitrates

(D) Proteins

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Chlorophyll is a green substance that is present in _____...?

(A) Mitochondria

(B) Nucleus

(C) Chloroplast

(D) Golgi Apparatus

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What is the name of the substance that dissolves the substance...?

(A) Solute

(B) Solvent

(C) Solution

(D) Mixture

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Which substance is the most alkaline...? Mcqs

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