Which of the following pairs is/are correctly matched ? (Coal Producing Area) - (State) 1. Maolong - Arunachal Pradesh 2. Raniganj - West Bengal 3. Ramgarh - Jharkhand 4. Talcher - Odisha Select the correct answer from the code given below :
- (a)Only 1 and 2
- (b)Only 1, 2 and 3
- (c)Only 2, 3 and 4
- (d)Only 1
Correct — C, Only 2, 3 and 4. Three of the four pairs hold. Raniganj is in Paschim Bardhaman district of West Bengal, on the western bank of the Damodar — this is where Indian commercial coal mining began in 1774 under John Sumner and Suetonius Grant Heatly of the East India Company. Ramgarh Coalfield lies in Ramgarh district of Jharkhand, in the same Damodar basin, and has been worked by Central Coalfields Limited since 1975. Talcher is in Angul district of Odisha, in the Mahanadi valley, and is mined by Mahanadi Coalfields Limited. Only pair 1 fails, and it fails on the State: Arunachal Pradesh's coal is the Namchik–Namphuk field of Changlang district, not 'Maolong' — Maolong (Mawlong) belongs to the Tertiary coal belt of the North-East's other coal state, Meghalaya. Drop pair 1 and you are left with 2, 3 and 4.
- (a)Only 1 and 2 — It keeps the one pair that is wrong (Maolong is not an Arunachal Pradesh coalfield) and throws away two that are right — Ramgarh–Jharkhand and Talcher–Odisha are both standard, uncontested pairs.
- (b)Only 1, 2 and 3 — Right about Raniganj and Ramgarh, but it still carries the faulty Maolong–Arunachal Pradesh pair and drops Talcher–Odisha, which is correct: Talcher sits in the Mahanadi valley in Angul district of Odisha.
- (d)Only 1 — The exact inversion of the truth. Pair 1 is the single pair that is NOT correctly matched, while the three it rejects are all sound.
About 99% of India's coal is Gondwana coal, laid down some 250 million years ago and preserved in a chain of ancient rift basins that today carry major rivers. That is why Indian coalfields are catalogued by river valley — Damodar (Raniganj, Jharia, Bokaro, Karanpura, Ramgarh, Giridih), Mahanadi (Talcher, Ib valley), Son (Singrauli), Godavari (Singareni). The North-East is the exception: its coal is much younger Tertiary coal, occurring in thin, high-sulphur seams in Meghalaya, Assam, Nagaland and Arunachal Pradesh, and it is mined on a far smaller scale.
A pairs question like this is decided by finding the single mismatch rather than by proving all four. Raniganj–West Bengal, Ramgarh–Jharkhand and Talcher–Odisha are textbook pairs a candidate should be able to accept instantly, which leaves the unfamiliar name — Maolong — carrying the whole question. The safe habit is to hold one anchor per North-Eastern state: Arunachal Pradesh = Namchik–Namphuk (Changlang district), Meghalaya = the Khasi–Jaintia hills belt, Assam = Makum/Ledo in the upper Brahmaputra valley. With that anchor, 'Maolong – Arunachal Pradesh' is rejected on sight.
- Raniganj Coalfield, Paschim Bardhaman district, West Bengal — India's first commercially mined coalfield, opened in 1774 by John Sumner and Suetonius Grant Heatly of the East India Company on the west bank of the Damodar
- Ramgarh Coalfield, Ramgarh district, Jharkhand — Damodar basin, about 98 sq km, total reserves of roughly 1,059 million tonnes; taken over by Central Coalfields Limited in 1975 (Rajrappa and Kuju areas)
- Talcher, Angul district, Odisha — Mahanadi valley, mined by Mahanadi Coalfields Limited, one of the largest reserve bases in the country
- Arunachal Pradesh's coal is the Namchik–Namphuk coalfield in Changlang district — the pairing UPSC itself tested in 2008
- The North-East's coal is Tertiary, not Gondwana: thin seams, high sulphur, and in Meghalaya long worked by shallow 'rat-hole' mines (Jaintia Hills is the state's largest coal producer)
- Assuming any unfamiliar North-Eastern coal name must belong to Arunachal Pradesh; Meghalaya and Assam are the region's principal coal states
- Confusing Ramgarh the Jharkhand coalfield with Ramgarh in Rajasthan, which is a gas field
- Rushing the code: options here differ only in which pairs are included, so mis-reading 'Only 1' for 'Only 1 and 2' costs the mark
UPPSC asks coalfield-to-State or coalfield-to-river-valley matches almost every cycle (2019 Paper-I matched Talchir, Karanpura, Singrauli and Singareni to their valleys). UPSC prefers the single-shot version — 'in which State is the X coalfield located' — or folds coal into a wider minerals-and-locations list.
In which one of the following States are Namchik-Namphuk Coalfields located?
- (a) Arunachal Pradesh
- (b) Meghalaya
- (c) Manipur
- (d) Mizoram
Answer(a) Arunachal Pradesh
Exactly the fact that decides pair 1 here. UPSC's answer is that Arunachal Pradesh's coalfield is Namchik-Namphuk, in Changlang district — so a different name attached to Arunachal Pradesh, as 'Maolong' is in this question, should raise an immediate flag.
Match List I with List II and select the correct answer by using the codes given below the lists: List I (Minerals) I. Coal II. Gold III. Mica IV. Manganese List II (Typical areas of Occurrence) A) Bhandara B) Karanpura C) Hutti D) Nellore Codes:
- (a) I-A, II-C, III-B, IV-D
- (b) I-B, II-C, III-D, IV-A
- (c) I-C, II-D, III-B, IV-A
- (d) I-B, II-A, III-D, IV-C
Answer(b) I-B, II-C, III-D, IV-A
The same skill on a wider canvas — matching a mineral to the field or belt where it occurs, with the Karanpura coalfield standing in for coal. Learn coalfields by their river valley and both questions fall out together.
Match List – I with List – II and select the correct answer using the codes given below the lists : List – I (Coal Fields) A. Talchir B. Karnapura C. Singroli D. Singreni List – II (Located) 1. Damodar Valley 2. Son Valley 3. Godavari Valley 4. Mahanadi Valley Codes :
- (a) A-4, B-1, C-2, D-3
- (b) A-3, B-2, C-1, D-4
- (c) A-2, B-4, C-3, D-1
- (d) A-1, B-3, C-2, D-4
Answer(a) A-4, B-1, C-2, D-3
UPPSC's own earlier version of this question, matching four coalfields to their river valleys instead of their States — Talcher appears in both. The commission clearly expects candidates to hold a coalfield-valley-State table ready.
- practice — not a real PYQ
Which one of the following coalfields lies in the Mahanadi valley?
- (a)Karanpura
- (b)Talcher
- (c)Singrauli
- (d)Raniganj
Answer(b) Talcher — in Angul district of Odisha; Karanpura and Raniganj are Damodar valley fields and Singrauli belongs to the Son valley.
- practice — not a real PYQ
Commercial coal mining in India began in 1774 in which of the following coalfields?
- (a)Jharia
- (b)Raniganj
- (c)Giridih
- (d)Bokaro
Answer(b) Raniganj — John Sumner and Suetonius Grant Heatly of the East India Company began working it on the western bank of the Damodar.