What is the name given to the linear strain produced in the direction of deforming force?

Chemistry Objective (Multiple Choice)

Linear strain: If the deforming force produces a change in length alone, the strain produced in the body is called linear strain or tensile strain. Linear strain in the direction of deforming force is called longitudinal strain and in a direction perpendicular to force is called lateral strain.

After a nuclear disaster, the Strontium-90 became a health issue of great concern. What is the major concern about this particular isotope?

Chemistry Objective (Multiple Choice)

Strontium-90 is a “bone seeker” that exhibits biochemical behaviour similar to calcium, the next lighter Group 2 element. After entering the organism, most often by ingestion with contaminated food or water, about 70–80% of the dose gets excreted. Virtually all remaining strontium-90 is deposited in bones and bone marrow, with the remaining 1% remaining in blood and soft tissues. Its presence in bones can cause bone cancer, cancer of nearby tissues, and leukaemia.

What is the common name of the analgesic and antipyretic drug acetylsalicylic acid?

Chemistry Objective (Multiple Choice)

Aspirin or acetylsalicylic acid is a salicylate drug, often used as an analgesic to relieve minor aches and pains, as an antipyretic to reduce fever, and as an anti-inflammatory medication. While in humans much of it is attributable to diet, a substantial part is synthesized endogenously.

Which of the following is the most commonly used chemical for ripening of mangoes in India?

Chemistry Objective (Multiple Choice)

Calcium Carbide is the most commonly used chemical for ripening of mangoes in India. It reacts with the moisture emanated by the respiration of the fruit. It liberates a gas called acetylene which helps in ripening the fruit. 

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