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📘 Study MCQs Q1. Phenolphthalein is a synthetic indicator. What color does it turn when added to a basic solution like sodium hydroxide? A. Yellow B. Red C. Pink D. Green AnswerC. PinkDetails Phenolphthalein is colorless in acidic and neutral solutions but turns pink to magenta in basic solutions, making it a widely used indicator […]

📘 Study MCQs Q1. A student tests aerated water with litmus paper. What change will he observe on the blue litmus paper? A. Turns green B. Turns red C. No change D. Turns blue AnswerB. Turns redDetails Aerated water contains dissolved carbon dioxide which forms carbonic acid (H₂CO₃), an acidic solution that turns blue litmus

📘 Study MCQs Q1. The word ‘acid’ comes from the Latin word ‘acidus’. What is the meaning of ‘acidus’? A. Sweet B. Bitter C. Sour D. Salty AnswerC. SourDetails The Latin word “acidus” means sour, which reflects the characteristic sour taste of most acids, such as lemon juice or vinegar. Q2. Which of the following

📘 Study MCQs Q1. The transfer of heat by the movement of a fluid is called ______. A. Conduction B. Convection C. Radiation D. Insulation AnswerB. ConvectionDetails Convection is the mode of heat transfer that involves the actual movement of the fluid (liquid or gas) itself, carrying thermal energy from one place to another. Q2.

📘 Study MCQs Q1. Heat is a form of ______. A. Liquid B. Energy C. Solid D. Gas AnswerB. EnergyDetails Heat is a form of energy that flows from a hotter body to a colder body due to temperature difference. It is measured in joules (J) or calories. Q2. The SI unit of temperature is

📘 Study MCQs Q1. The simplest form into which fats are broken down during digestion is called: A. Glucose B. Amino acid C. Fatty acid D. Glycerol AnswerC. Fatty acidDetails Fats (lipids) are broken down by the enzyme lipase into fatty acids and glycerol. Fatty acids are long hydrocarbon chains that serve as an energy

📘 Study MCQs Q1. The first step of nutrition where food is taken into the body is called: A. Digestion B. Ingestion C. Absorption D. Assimilation AnswerB. IngestionDetails Ingestion is the initial step of nutrition, involving the intake of food into the body through the mouth. It is followed by digestion, absorption, assimilation, and egestion.

📘 Study MCQs Q1. The type of nutrition where animals obtain food by eating other organisms is called: A. Autotrophic nutrition B. Heterotrophic nutrition C. Parasitic nutrition D. Symbiotic nutrition AnswerB. Heterotrophic nutritionDetails Heterotrophic nutrition is the mode of nutrition where organisms cannot synthesize their own food and depend on other organisms (plants or animals)

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