Related Questions

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
A Cresylic acid
B Xanthaies
C Pine oil
D All of the above
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called
A liquation
B leaching
C levigation
D magnetic separation
Ore concentration by froth floatation utilises the __________ of ore particles.
A Density difference
B Wetting characteristics
C Terminal velocities
D None of these
Leaching of uranium ore and gold ore is done in
A Centrifugal extractor
B Pachuka tanks
C Bollman extractor
D None of these
Which compound is formed when a Magnesium ribbon is burnt in air?
A Magnesium Nitrate
B Magnesium Carbonate
C Magnesium Oxide
D Magnesium Nitride
Eclampsia 'র জন্য যখন আমরা Magnesium sulphate injection দেই তখন আমাদেরকে নিচের কোন বিষয়টি অবশ্যই monitor করতে হবে?
A তাপমাত্রা
B Pulse
C ইউরিনের পরিমাণ
D Lymph node
Serum magnesium level is reduced in
A Severe diarrhea
B Chronic dialysis
C Acute renal disease
D Hyperthyroidism
E Idiopathic hypercalcaemia
What is formed when Magnesium is burnt?
A Baking Soda
B Calcium Carbonate
C Ash
D Vinegar
What is the valency of magnesium?
A 1
B 2
C 3
D 4
The mineral containing both magnesium and calcium is
A magnesite
B calcite
C carnallite
D dolomite

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