The question asks to identify the Mahajanapada that became the most powerful in North India and served as the precursor to the Mauryan Empire. This requires knowledge of the political history of ancient India, specifically the period of the Mahajanapadas.
Correct Option: C) Magadha emerged as the most powerful Mahajanapada due to its strategic geographical location (rich in iron ores, fertile Gangetic plains), strong leadership, and expansionist policies. It successfully absorbed other major kingdoms like Kosala, Vatsa, and Avanti, establishing a large and centralized state that laid the groundwork for the Mauryan Empire.
The question asks about the key factors contributing to Magadha's rise to dominance among the Mahajanapadas. We need to identify the strategic advantage that complemented its fertile land and iron ore resources.
A) The Gangetic trade routes and resources — Magadha's strategic location allowed it to control the fertile Gangetic plain, which provided agricultural surplus, and the Gangetic river system, which served as vital trade routes and facilitated military movements. This, combined with iron ore deposits, gave it a significant advantage over other Mahajanapadas.
The question asks about the negative reputation of the Nanda dynasty, despite its military strength and vast empire. This requires knowledge of the social and administrative aspects of the Nanda rule as recorded in historical traditions.
Correct Option: B) Oppressive taxation and unpopularity among subjects
The question asks for the approximate year of Alexander the Great's invasion of North-Western India. This is a direct historical fact that needs to be recalled.
Correct Option: D) 326 BCE is the correct period for Alexander the Great's invasion of North-Western India.
The question asks to identify the river on whose banks Alexander the Great fought King Porus, leading to his troops' refusal to advance further into India. This is a historical fact related to Alexander's Indian campaign.
Correct Option: C) Jhelum (Hydaspes) is the correct answer. The Battle of the Hydaspes (Jhelum) in 326 BCE was a significant engagement where Alexander defeated King Porus. Despite the victory, the fierce resistance and the sheer exhaustion of years of campaigning led Alexander's troops to mutiny and refuse to advance further into India, forcing him to turn back.
The question asks to identify the founder of the Mauryan Empire. This requires knowledge of ancient Indian history, specifically the origins of major empires.
D) Chandragupta Maurya. Chandragupta Maurya, with the help of his mentor Chanakya (Kautilya), overthrew the Nanda dynasty around 321 BCE and established the Mauryan Empire. He is widely recognized as the founder and first emperor of this powerful dynasty.