The question asks why water is an excellent solvent, often called the "universal solvent." This property is fundamentally linked to its molecular structure and the resulting intermolecular forces. We need to identify the characteristic that allows water to interact with and dissolve a wide range of substances.
Correct Option: A) It is dipolar in nature
With reference to street-lighting, how do sodium lamps differ from LED lamps?
1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps.
2. As street-lights, sodium lamps have longer life span than LED lamps.
3. The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street-lighting.
Select the correct answer using the code given below.
The question asks us to compare sodium lamps and LED lamps, specifically for street-lighting applications, based on three given statements. We need to evaluate each statement for its accuracy.
C) 1 and 3 only — Statements 1 and 3 are correct, while statement 2 is incorrect.
The question asks about the context in which the term 'ACE2' is discussed. This requires knowledge of recent scientific and medical developments, particularly those related to global health crises.
D) spread of viral diseases — ACE2 is a crucial receptor that the SARS-CoV-2 virus uses to enter human cells, making it central to understanding the spread and pathology of COVID-19 and other viral diseases.
The question asks to identify the type of plastic for which Bisphenol A (BPA) is a structural or key component. This requires knowledge of common plastics and their constituent monomers.
Correct Option: B) Polycarbonate. Bisphenol A (BPA) is a key monomer used in the synthesis of polycarbonate plastics. These plastics are known for their strength and transparency and are used in products like water bottles, CDs, and safety glasses.
The question asks to identify the product category where 'Triclosan' is most likely found. Triclosan is an antibacterial and antifungal agent. Understanding its common applications will help in selecting the correct option.
Correct Option: D) Toiletries — Triclosan is a common ingredient in many personal care products and toiletries, including antibacterial soaps, toothpastes, mouthwashes, and deodorants, due to its antimicrobial properties. Exposure to high levels over long periods has raised health concerns.
The question asks why astronomical distances are measured in light-years. A light-year is a unit of distance, defined as the distance light travels in one Julian year in vacuum. The choice of this unit is fundamentally linked to a specific property of light.
D) Speed of light is always same. This is the correct reason. The speed of light in a vacuum is a universal constant. This constancy allows the light-year to be a precise and consistent measure of astronomical distances. Because light travels at a constant speed, the distance it covers in a year is always the same, making the light-year a reliable unit.
We adopted parliamentary democracy based on the British model, but how does our model differ from that model?
1. As regards legislation, the British Parliament is supreme or sovereign but in India, the power of the Parliament to legislate is limited.
2. In India, matters related to the constitutionality of the Amendment of an Act of the Parliament are referred to the Constitution Bench by the Supreme Court.
Select the correct answer using the code given below.
The question asks to identify the differences between the Indian parliamentary democracy model and the British model, specifically concerning legislative supremacy and judicial review of constitutional amendments. We need to evaluate each statement for its accuracy in highlighting these differences.
Both statements accurately describe differences between the Indian and British parliamentary systems.
C) Both 1 and 2
Both statements correctly identify key differences between the Indian and British parliamentary systems. The Indian Parliament's legislative power is limited by the Constitution and judicial review, unlike the sovereign British Parliament. Furthermore, the Indian Supreme Court's role in reviewing the constitutionality of amendments through a Constitution Bench is a distinct feature not found in the British model.
With reference to the Union Government, consider the following statements:
1. N. Gopalaswamy Iyengar Committee suggested that a minister and a secretary be designated solely for pursuing the subject of administrative reform and promoting it.
2. In 1970, the Department of Personnel was constituted on the recommendation of the Administrative Reforms Commission, 1966, and this was placed under the Prime Minister’s charge.
Which of the statements given above is/are correct?
The question asks us to evaluate two statements regarding administrative reforms and the Department of Personnel in the context of the Union Government. We need to determine which of these statements are factually correct based on historical information about Indian administration.
B) 2 only
The question asks to identify the Article of the Indian Constitution that protects the 'Right to Privacy'. This requires knowledge of fundamental rights enshrined in the Constitution and their interpretations by the Supreme Court.
Correct Option: C) Article 21 of the Constitution of India states that "No person shall be deprived of his life or personal liberty except according to procedure established by law." The Supreme Court of India, in the landmark judgment of K.S. Puttaswamy v. Union of India (2017), unanimously declared that the Right to Privacy is a fundamental right under Article 21. It is an intrinsic part of the right to life and personal liberty guaranteed under Article 21 and is also protected under Part III of the Constitution.
Consider the following statements:
1. In India, there is no law restricting the candidates from contesting in one Lok Sabha election from three constituencies.
2. In 1991 Lok Sabha Election, Shri Devi Lal contested from three Lok Sabha constituencies.
3. As per the existing rules, if a candidate contests in one Lok Sabha election from many constituencies, his/her party should bear the cost of bye-elections to the constituencies vacated by him/her in the event of him/her winning in all the constituencies.
Which of the statements given above is/are correct?
The question asks to identify the correct statements regarding rules for contesting elections from multiple constituencies in India. We need to evaluate each statement based on electoral laws and historical facts.
B) 2 only