General Science Questions and Answers – Page 8

The defining scientific property identifies Candela. Candela is the SI unit of luminous intensity. Physics requires attention to the measured quantity, governing principle and unit. In “What is the SI unit of luminous intensity?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Lux, Watt and Lumen are legitimate scientific terms, but each belongs to a different function, property, material or context. If the topic involves the human body, check organ and function; in chemistry, check composition and reaction; in physics, check quantity and unit; and in environmental science, check layer and process. For revision, connect the stem with Candela and with the explanatory fact above.

Vitamin E is the scientifically supported answer. Vitamin E protects cell membranes from oxidative damage. In “Which vitamin acts as an antioxidant protecting cells from oxidative damage?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Vitamin K, Vitamin B12 and Vitamin D are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Vitamin E and with the explanatory fact above.

The concept tested here leads specifically to Highest frequency, shortest wavelength. Gamma rays have the highest frequency and shortest wavelength. In “In which region of the electromagnetic spectrum do gamma rays lie?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Visible region, Lowest frequency, longest wavelength and Radio region are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Highest frequency, shortest wavelength and with the explanatory fact above.

Option D, Al2O3, matches the evidence in the stem. Aluminium oxide reacts with both acids and bases. In “Which oxide is amphoteric in nature?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives CO2, SO2 and Na2O are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Al2O3 and with the explanatory fact above.

The defining scientific property identifies Loop of Henle. Countercurrent multiplication in the Loop of Henle concentrates urine. In “Which part of the nephron is mainly responsible for concentration of urine by countercurrent mechanism?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Distal convoluted tubule, Bowman's capsule and Proximal convoluted tubule are legitimate scientific terms, but each belongs to a different function, property, material or context. A useful verification is to state the definition in one sentence and ask whether the selected option satisfies every part of it. For revision, connect the stem with Loop of Henle and with the explanatory fact above. This builds reliable recall for SSC, Railway, State exams and other General Science tests while preserving conceptual understanding.

Newton's second law is the scientifically supported answer. Newton's second law states that force equals mass times acceleration. In “Which law gives the relation F = ma?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Newton's first law, Newton's third law and Ohm's law are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Newton's second law and with the explanatory fact above.

The concept tested here leads specifically to Quicklime. Calcium oxide is commonly known as quicklime. In “What is the common name of calcium oxide?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Plaster of Paris, Baking soda and Bleaching powder are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Quicklime and with the explanatory fact above.

Option D, Liver, matches the evidence in the stem. Bile is produced by the liver and stored in the gall bladder. Similar organs and biomolecules may participate in the same body system but do not perform identical functions. In “Which organ in the human body produces bile juice?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Pancreas, Spleen and Gall bladder are legitimate scientific terms, but each belongs to a different function, property, material or context. If the topic involves the human body, check organ and function; in chemistry, check composition and reaction; in physics, check quantity and unit; and in environmental science, check layer and process. For revision, connect the stem with Liver and with the explanatory fact above.

The defining scientific property identifies Concave mirror. A concave mirror forms a magnified, erect image when the object is within its focal length. In “Which mirror is used by dentists to obtain an enlarged image of the teeth?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Convex mirror, Cylindrical mirror and Plane mirror are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Concave mirror and with the explanatory fact above.

Goitre is the scientifically supported answer. Iodine deficiency causes enlargement of the thyroid gland, known as goitre. Biological questions are best solved by connecting a structure or nutrient with its physiological role, location and consequence of deficiency or malfunction. In “Which deficiency disease is caused by lack of iodine in the diet?”, the decisive clue should be interpreted through the underlying mechanism, not through a familiar-sounding word. The alternatives Rickets, Scurvy and Beriberi are legitimate scientific terms, but each belongs to a different function, property, material or context. For revision, connect the stem with Goitre and with the explanatory fact above.