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Chemistry questions and answers

Browse questions about Chemistry, with answers and explanations.

423 questions

Acids, Bases and Salts54 questionsChemical Bonding10 questionsChemical Kinetics4 questionsChemical Reactions2 questionsChemical Reactions and Equations16 questionsChemistry in Everyday Life24 questionsCombustion and Flame12 questionsCoordination Compounds2 questionsElectrochemistry5 questionsEnvironmental Chemistry7 questionsMetallurgy13 questionsMetals and Non-metals3 questionsMetals, Non-metals and Alloys22 questionsOrganic Chemistry94 questionsPeriodic Table58 questionsPolymers3 questionsSolutions15 questionsSome Basic Concepts of Chemistry7 questionsStates of Matter22 questionsStructure of Atom48 questionsSurface Chemistry2 questions

Questions

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Consider the following statements: 1. Muriatic acid is another common name for hydrochloric acid. 2. Hydrochloric acid is used in the production of chlorides,…

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In the context of NCERT’s introductory discussion of pH in everyday life, which statement is correct?

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Which of the following statements is/are correct? I. Salts of a strong acid and weak base are acidic with pH value less than 7.…

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Consider the following statements: 1. Acetic acid is the main acid present in vinegar. 2. Citric acid is primarily found in citrus fruits like…

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When the litmus solution is neither acidic nor basic, its colour is ______.

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Which of the following is used as an antacid to neutralise stomach acidity?

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Consider the following statements: 1. Hydrogen chloride (HCl) is a covalent compound formed by sharing electrons between hydrogen and chlorine atoms. 2. Sodium chloride…

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The reaction between an acid and a base is known as _______.

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Consider the following statements: 1. Potassium chloride is not used to treat potassium deficiency. 2. Potassium iodide is used to supplement iodine in the…

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Which of the following are examples of synthetic indicators in chemistry? I. Methyl orange II. Phenolphthalein

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When an acid reacts with a hydroxide base in aqueous neutralisation, what are the products?

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At 25°C, what is the approximate pH of 100 mL of aqueous solution containing 0.01 mol of NaOH? Assume complete dissociation and ideal concentration…

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Match the substances in Column A with their commonly associated acids in Column B. Column A | Column B i. Lemon | a. Tartaric…

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What is the correct method for diluting a concentrated acid with water?

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Consider the following statements: 1. Alkalis are bases that are soluble in water. 2. All alkalis are bases, but not all bases are alkalis.…

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Which radioactive isotope, with a half-life commonly stated as about 5730 years, is used to estimate the age of organic materials such as paper…

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Which element takes its name from Cyprus, the island shown in the Royal Society of Chemistry’s illustration for that element?

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Which of the following gases plays an important role in welding titanium, aluminium, stainless steel, and magnesium?

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Consider the reaction of heated iron with steam. 1. A gas is evolved during this reaction. 2. The evolved gas is methane. Which statements…

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Which salt forms when zinc reacts with dilute sulfuric acid?

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Which of the following is used as a substitute of mercury in thermometers?

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Consider the following statements about LED semiconductors. 1. Gallium is a constituent of compound semiconductors such as GaAs and GaN used in LEDs. 2.…

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Which option names the traditional tin–lead alloy used as leaded solder?

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Which metal is a constituent of the mineral kieserite (MgSO₄·H₂O)?

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