Tag: science & technology

'Think Different' was Apple's iconic advertising campaign launched in 1997 under Steve Jobs' return, representing their innovative philosophy and creative approach. The other options are different companies: Sprint is a telecommunications company, Texas Instruments makes calculators and semiconductors, and Sun Microsystems was a server company (acquired by Oracle in 2010).

'Powered by Intellect, Driven by Values' is Infosys's official tagline emphasizing their dual commitment to technical excellence and ethical principles. The other options are different IT companies: Satyam (involved in a major scandal in 2009), HCL is another Indian IT company, and Cognizant is a US-based IT services firm with taglines like 'Your Partner for Digital Transformation.'

Esters are organic compounds responsible for the pleasant fragrant odors found in many fruits. Esters are formed by the reaction between an alcohol and a carboxylic acid. Option C is correct. Alcohols (A) have characteristic odors but are not typically fruit-fragrant, alkanes (B) are odorless, and alkenes (D) have different properties.

Benzyl benzoate (option C) is used medicinally as a treatment for scabies and lice, and also in asthma therapy as it has bronchodilator properties. The question mentions 'Veezing' which is likely a misspelling of 'wheezing'. Benzyl benzoate helps with respiratory issues.

Metallic potassium (option B) is highly reactive with water and ignites spontaneously upon contact, producing hydrogen gas and heat. The reaction is 2K + 2H2O → 2KOH + H2 + heat. Granulated magnesium (A) doesn't ignite in water at room temperature, 'Ethiline' (C) appears to be a typo for ethylene or a similar compound, and ethanol (D) is miscible with water without ignition.

Albert Einstein was born on March 14, 1879. He was a theoretical physicist who developed the theory of relativity and is considered one of the most influential scientists of the 20th century.

Albert Einstein was born in Ulm, in the Kingdom of Württemberg in the German Empire, on March 14, 1879. At the time, Ulm was part of what is now modern-day Germany.

Einstein was a passionate violinist and played the violin throughout his life. His mother was a pianist and music was important to him. Note that option C has a typo ('viloin' should be 'violin').