MCQ

Q1. Which chemical compound is commonly used as a disinfectant for water purification and sanitation purposes?a) Sodium chlorideb) Sodium hypochloritec) Sodium hydroxided) Sodium carbonate Q2. Which chemical compound is used as an antacid to relieve heartburn and indigestion?a) Sodium bicarbonateb) Calcium carbonatec) Magnesium hydroxided) Aluminum hydroxide Q3. Which chemical compound is commonly used as a

Q1. How does increasing the concentration of a solute affect its solubility in a solvent?a) Solubility increasesb) Solubility decreasesc) Solubility remains unchangedd) Solubility may increase or decrease depending on the solute-solvent interaction Q2. What happens to the solubility of a gas in a liquid when the pressure of the gas above the liquid increases?a) Solubility

Q1. Which of the following metals is the most abundant element in the Earth’s crust?a) Ironb) Aluminumc) Copperd) Zinc Q2. Which metal is known for its exceptional conductivity of electricity and is commonly used in electrical wiring and transmission lines?a) Aluminumb) Silverc) Copperd) Gold Q3. Which metal is primarily used as a structural material in

Q1. Which non-metal is a colorless, odorless, and tasteless gas that makes up approximately 78% of Earth’s atmosphere?a) Oxygenb) Nitrogenc) Hydrogend) Carbon dioxide Q2. Which non-metal is a yellowish-brown, pungent gas with the chemical formula SO2 and is produced primarily by the burning of fossil fuels?a) Oxygenb) Sulfur dioxidec) Hydrogen sulfided) Nitrogen dioxide Q3. Which

Q1. Which of the following is a commonly mined ore of iron?a) Bauxiteb) Hematitec) Galenad) Magnetite Q2. Which mineral is primarily composed of calcium carbonate and is commonly used in the production of cement, mortar, and lime?a) Quartzb) Gypsumc) Calcited) Feldspar Q1. Which of the following is not a source of Ancient Indian history?a) Inscriptionsb)

Q1. What does the pH scale measure?a) Temperatureb) Acidity or alkalinityc) Pressured) Density Q2. Which of the following substances would have a pH value below 7?a) Lemon juiceb) Baking soda solutionc) Soap solutiond) Milk Q3. What does a pH value of 7 indicate on the pH scale?a) Strong acidityb) Strong alkalinityc) Neutralityd) Weak acidity Q4.

Q1. Which of the following organic compounds is commonly known as the building block of life?a) Glucoseb) Ethanolc) Methaned) Benzene Q2. Which organic compound is commonly used as a solvent, disinfectant, and antiseptic in various industries and applications?a) Ethanolb) Methanolc) Acetoned) Formaldehyde Q3. Which organic compound is the primary component of natural gas and is

Q1. What is the chemical name of common table salt?a) Sodium chlorideb) Calcium chloridec) Potassium chlorided) Magnesium chloride Q2. Which type of salt is commonly used to melt ice on roads and sidewalks during winter?a) Sodium chlorideb) Calcium chloridec) Potassium chlorided) Magnesium chloride Q3. Which type of salt is commonly used in water softeners to

Q1. Which of the following acids is commonly found in citrus fruits such as oranges and lemons?a) Hydrochloric acidb) Sulfuric acidc) Citric acidd) Acetic acid Q2. Which acid is commonly used in the production of fertilizers and detergents and is known for its corrosive properties?a) Hydrochloric acidb) Nitric acidc) Sulfuric acidd) Phosphoric acid Q3. Which

Q1. Which of the following fertilizers provides nitrogen, phosphorus, and potassium in balanced proportions?a) Ureab) Superphosphatec) NPK fertilizerd) Potassium chloride Q2. Which fertilizer is primarily composed of ammonium nitrate and is widely used as a source of nitrogen for crops?a) Superphosphateb) Ureac) Potassium sulfated) Ammonium nitrate Q3. Which fertilizer is obtained from the processing of