NEET Practice Questions (MCQs) with Answers & Solutions

According to the NCERT text, 'Therefore, the Indian Government has set up organisations such as GEAC (Genetic Engineering Approval Committee), which will make decisions regarding the validity of GM research and the safety of introducing GM-organisms for public services.'

The NCERT text states, 'Genetic modification of organisms can have unpredict able results when such organisms are introduced into the ecosystem.'

The NCERT text highlights this issue: 'There is growing public anger that certain companies are being granted patents for products and technologies that make use of the genetic materials, plants and other biological resources that have long been identified, developed and used by farmers and indigenous people of a specific region/country.'

The NCERT text mentions, 'Some ethical standards are required to evaluate the morality of all human activities that might help or harm living organisms.'

The text discusses unpredictable results, patent anger, and the morality of manipulation. The rapid pace of technological development, while true, is not specifically mentioned as an ethical issue concerning biotechnology within the provided context.

Though the term 'biopiracy' isn't explicitly defined, the text describes the core concept: 'There is growing public anger that certain companies are being granted patents for products and technologies that make use of the genetic materials, plants and other biological resources that have long been identified, developed and used by farmers and indigenous people of a specific region/country.' This aligns with the definition of biopiracy.

According to the NCERT text, 'Cumene (isopropylbenzene) is oxidised in the presence of air to cumene hydroperoxide.' This is the correct initial step in the industrial preparation of phenol from cumene.

The NCERT states, 'Diazonium salts are hydrolysed to phenols by warming with water or by treating with dilute acids.' Hydrolysis is the reaction with water that breaks a bond.

The NCERT states, 'Chlorobenzene is fused with NaOH at 623K and 320 atmospheric pressure. Phenol is obtained by acidification of sodium phenoxide so produced.' These harsh conditions are characteristic of the Dow's process.

NCERT states 'From benzenesulphonic acid: Benzene is sulphonated with oleum and benzene sulphonic acid so formed is converted to sodium phenoxide on heating with molten sodium hydroxide. Acidification of the sodium salt gives phenol.'