The correct answer is (c) Ambani.

• The Ambani family topped the list of the Top 10 Wealthiest Families in Asia for 2025, according to Bloomberg.

• With a combined wealth of $90.5 billion (₹7.85 lakh crore), the Ambani family, through Reliance Industries, has maintained its position as the wealthiest family in Asia.

• The family's wealth has grown across three generations, reflecting the long-term resilience and expansion of family-run enterprises in India.

Information Booster:

• The list highlights six Indian families among the top 20 wealthiest families in Asia.

• Other Indian families in the top 10 include the Mistry family (Shapoorji Pallonji Group), Jindal family (OP Jindal Group), and the Birla family (Aditya Birla Group).

• The rankings exclude first-generation billionaire entrepreneurs and focus on multi-generational wealth.

• The Ambani family has diversified its holdings in sectors like petrochemicals, telecommunications, and retail, cementing their place at the top.

Additional Information:

Correct Answer: D (18 u)

Explanation:

The relative molecular mass (RMM) of a compound is the sum of the relative atomic masses (RAM) of all the atoms in its molecular formula. For water (H₂O):

• Hydrogen (H): Atomic mass is 1 u, and there are 2 hydrogen atoms in water.
• Oxygen (O): Atomic mass is 16 u, and there is 1 oxygen atom in water.

Thus,

RMM of H₂O = (2 × 1) + (1 × 16) = 2 + 16 = 18 u.

• Option A (8 u): Incorrect, as it does not match the correct calculation.
• Option B (9 u): Incorrect, as it underestimates the molecular mass.
• Option C (16 u): Incorrect, as it only accounts for the oxygen atom and ignores the hydrogen atoms.

Key Facts:

● Relative Atomic Mass: Based on the carbon-12 isotope standard, expressed in atomic mass units (u).

● Significance of RMM: Essential for stoichiometry and determining the proportions of elements in a compound.

● Water Composition: H₂O consists of 2 hydrogen atoms and 1 oxygen atom, making it a fundamental compound in chemistry.

● Applications of Water RMM: Used in calculations for molarity, mass-mole conversions, and chemical reactions.

Correct Answer: (C). Because the cells become packed with waste materials

Many trees shed old leaves to maintain their health and efficiency. Over time, the cells in older leaves accumulate waste materials that can't be easily processed or removed.

Additionally, older leaves are less efficient at photosynthesis, and their removal helps the tree conserve energy and resources for new growth.

This is part of the tree's natural process of leaf abscission.

Information Booster:

• Trees can support a large number of leaves, but shedding them is more about optimizing energy use rather than a strict limitation on the number of leaves.
• While the cells in old leaves do eventually die, the shedding of leaves is primarily a response to the accumulation of waste and a reduction in photosynthesis efficiency.
• Strong winds may cause some leaves to fall, but the natural process of leaf shedding is not caused by external forces like wind; it's a controlled biological process.

The Correct Answer is C: 2 R

Explanation

Using four resistors of equal resistance R, different values of equivalent resistance can be obtained through series and parallel combinations. However, achieving exactly 2 R is not possible using all four resistors together.

Key Points

• Series combination: The total resistance increases as

The correct answer is (c) ECINET

• The Election Commission of India (ECI) is set to launch ECINET, a unified digital platform that will consolidate over 40 existing electoral service applications into one comprehensive interface.

• The initiative, conceptualized under Chief Election Commissioner Shri Gyanesh Kumar, is designed to enhance user experience, accessibility, and data accuracy, and will benefit over 100 crore voters and lakhs of polling staff.

Information Booster:

• ECINET will integrate apps like Voter Helpline, cVIGIL, Suvidha 2.0, ERONET, EMS, and more.

• The app’s development involved feedback from 36 CEOs, 767 DEOs, and 4,123 EROs and insights from 76 official ECI publications.

• Aligned with the Representation of the People Act (1950 & 1951) and relevant electoral rules for legal compliance.

• Data input will be handled strictly by authorized ECI officials to prevent errors or misuse.

Additional Information:

• Stakeholders who will benefit:

  • 100 crore electors

  • 10.5 lakh Booth Level Officers (BLOs)

  • 15 lakh Booth Level Agents (BLAs)

  • 45 lakh polling officials

• The platform is designed with an enhanced UI/UX, ensuring seamless access across mobile and desktop devices.

• ECINET promotes digital governance in electoral processes and ensures better transparency and efficiency.

Given:

Radius of cylindrical roller =35/2 cm

Length of roller = 100cm

Formula Used:

Curved surface area = 2π rh

Solution:

CSA = 2π rh

Given:

Vani starts from point A and drives 6 km towards West.

She then takes a left turn, drives 8 km.

She then turns left and drives 6 km to reach point B.

From the given information possible Venn diagram will be.

Point B in South direction with respect to point A.

Thus, correct option is (b).

The missing figure that will complete the figure is

Thus, the correct option is: (c)

Correct Answer: B. Methanamine

Explanation:

The IUPAC name of CH₃NH₂ is Methanamine. It is derived from methane (CH₄) by replacing one hydrogen atom with an amine (-NH₂) functional group. This makes it the simplest primary amine.

Information Booster:

• Methanamine (Methylamine) is a colorless gas with a strong ammonia-like odor.
• It is used in pharmaceuticals, dyes, pesticides, and solvents.
• The general formula of amines is R-NH₂ for primary amines.
• It is highly soluble in water and ethanol.
• Industrially produced by reaction of methanol with ammonia.

Additional Information:

• (A) Propan-1-amine – Incorrect; it has three carbon atoms (C₃H₇NH₂).
• (C) 2-Methyl propan-1-amine – Incorrect; it refers to a branched-chain amine (C₄H₁₁N).
• (D) Ethanamine – Incorrect; it refers to C₂H₅NH₂ (ethylamine).

Correct Answer is: Neither conclusion 1 nor conclusion 2 is implicit.

Statement:

Human beings and apes have some common characteristics.

Conclusions:

1. Apes are smarter than human beings.

(Not implicit, there is no comparison of intelligence between apes and human beings in the statement).

2. Human beings are smarter than Apes.

(Not implicit, the statement only mentions shared characteristics, not superiority or intelligence).

Neither conclusion 1 nor conclusion 2 is implicit.

Thus, correct option is (d).