AP EAMCET · Chemistry · General Principles and Processes of Isolation of Metals
Which one of the following sets is not correctly matched?
- A Cuprite, haematite - oxide ores
- B Calamine, siderite - carbonate ores
- C Magnetite, malachite - silicate ores
- D Sphalerite, fool's gold - sulphide ores
Answer & Solution
Correct Answer
(C) Magnetite, malachite - silicate ores
Step-by-step Solution
Detailed explanation
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Which of the following is not tetrahedral?AP EAMCET 2007 Easy
- \(\mathrm{AlCl}_3\) is an electron deficient compound but \(\mathrm{AlF}_3\) is not. This is becauseAP EAMCET 2021 Easy
- Acetic acid on heating with \(\mathrm{NH}_3\) forms \(A\). When \(A\) reacts with \(\mathrm{LiAlH}_4\) followed by hydrolysis gives \(B\). When \(B\) is heated with chloroform in \(\mathrm{KOH}\) medium gives \(C\). What are \(B\) and \(C\) respectively?AP EAMCET 2019 Medium
- Choose the correct statement from the following.
(i) Beryllium is not readly attacked by acids because of the presence of an oxide film on the surface of the metal.
(ii) \(\mathrm{BeO}\) is an amphoteric oxide.
(iii) Beryllium exhibits coordination number more than four.
(iv) Beryllium oxide is purely acidic in nature.AP EAMCET 2020 Hard - The reagent used in the preparation of aspirin from salicylic acid isAP EAMCET 2002 Easy
- Standard entropies of and are and respectively. At what temperature the following reaction will be at equilibriumAP EAMCET 2021 Medium
More PYQs from AP EAMCET
- The distance between the lines represented by \(4 x^2+20 x y+25 y^2+2 x+5 y-12=0\) is equal toAP EAMCET 2022 Medium
- Let \(A(1,-1,2), B(6,11,2), C(1,2,6)\) be three points. If \(l_1, \mathrm{~m}_1, \mathrm{n}_1\) are the direction cosines of \(\mathrm{AB}\) and \(l_2, \mathrm{~m}_2, \mathrm{n}_2\) are the direction cosines of \(\mathrm{AC}\), then \(\left|l_1 L_2+\mathrm{m}_1 \mathrm{~m}_2+\mathrm{n}_1 \mathrm{n}_2\right|=\)AP EAMCET 2023 Medium
- AP EAMCET 2022 Hard
- The equation of circle with centre \((2,-3)\) and touching \(X\)-axis isAP EAMCET 2022 Easy
- A lift raises 50 passengers each having average weight \(600 \mathrm{~N}\) to a height of \(100 \mathrm{~m}\) at a constant speed in time \(t\). If the average power of \(15 \mathrm{~kW}\) is required by the lift, then the value of \(t\) in seconds isAP EAMCET 2022 Easy
- Let the point L lying in the first quadrant be one end of a latus rectum of the ellipse \(\frac{x^2}{4}+\frac{y^2}{3}=1\). Let \(P\) and \(Q\) be the points where the normal drawn at \(\mathrm{L}\) to this given ellipse meets the major axis and the minor axis. Then the distance between \(\mathrm{P}\) and \(\mathrm{Q}\) isAP EAMCET 2023 Hard