Question
Define concentration of an ore.
✓
Answer
Concentration : A process of removal of gangue or unwanted impurities from the ore is called concentration of an ore. It is also called benefaction or dressing of an ore.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Give examples of (a) strong acids and strong bases, (b) weak acids and bases.
Write two principles of green chemistry.
Write equation for bond enthalpy of $Cl - Cl$ bond in $Cl _2$ molecule $\Delta_r H ^0$ for dissociation of $Cl _2$ molecule is 242.7 kJ .
→When acetaldehyde Is treated with dilute NaOH, the following reaction is observed.
(1) What are the functional groups in the product?
(2) Can another product be formed during the same reaction? (Deduce the answer by doing atomic audit of reactant and product)
(3) Is this an addition reaction or condensation reaction?
What is electrochemistry ?
What is the action of the following reagents on phenol $-$
$(a)$ Bromine in $CS_2$ at low temperature
$(b)$ Conc. $H_2SO_4$ at room temperature.
→$(a)$ Bromine in $CS_2$ at low temperature
$(b)$ Conc. $H_2SO_4$ at room temperature.
Giving suitable reasons, arrange the hydrides of group 16 elements in the decreasing order of their thermal stability.
The pH of a solution is $6.06.$ Calculate its $H^{+}$ ion concentration.
→→
The reaction $A + B \longrightarrow$ products is first order in each of the reactants.
(a) How does the rate of reaction change if the concentration of $A$ is increased by factor 3 ?
(b) What is the change in the rate of reaction if the concentration of $A$ is halved and concentration of $B$ is doubled?
→(a) How does the rate of reaction change if the concentration of $A$ is increased by factor 3 ?
(b) What is the change in the rate of reaction if the concentration of $A$ is halved and concentration of $B$ is doubled?