Jharkhand - Study Mode

[#671] Galena is mineral of lead which is found in mixture with which of the following?
Correct Answer

(A) Zinc and Silver

Explanation

Solution: Galena is the main ore of lead, used since ancient times, since lead can be smelted from galena in an ordinary wood fire. Galena typically is found in hydrothermal veins in association with sphalerite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite and fluorite. It is also found in association with sphalerite in low-temperature lead-zinc deposits within limestone beds. Minor amounts are found in contact metamorphic zones, in pegmatites and disseminated in sedimentary rock. In some deposits the galena contains up to 0.5% silver, a byproduct that far surpasses the main lead ore in revenue. In these deposits significant amounts of silver occur as included silver sulfide mineral phases or as limited silver in solid solution within the galena structure.

[#672] Copper-ore is largely found in Jharkhand in
Correct Answer

(A) Purbi Singhbhum

Explanation

Solution: Copper ore's affluent deposits transpire in the East Singbhum area.

[#673] Consider the following statements. 1. Limestone is found in Hazaribagh. 2. Quartzite is found in Singhbhum. Which of the statement(s) given above is/are true?
Correct Answer

(B) Only 2

[#674] Central Mining Research Institute is located at which place in Jharkhand?
Correct Answer

(A) Dhanbad

Explanation

Solution: CIMFR, previously known as Central Mining Research Institute and Central Fuel Research Institute, is based in Dhanbad, Jharkhand, India. It is a constituent laboratory of Council of Scientific & Industrial Research, an autonomous government body and India's largest research and development organisation.

[#675] Bauxite is found at which place of Jharkhand?
Correct Answer

(D) Ranchi