Regeneration in Hydra will be faster if it is cut off from
- tentacles
- hypostome
- base
- all of these
The Correct Option is A
Solution and Explanation
Top Questions on General Principles and Processes of Isolation of Elements
- On reaction of Lead Sulphide with dilute nitric acid which of the following is not formed ?
- JEE Main - 2024
- Chemistry
- General Principles and Processes of Isolation of Elements
- Given below are two statements:
Statement I : During Electrolytic refining, the pure metal is made to act as anode and its impure metallic form is used as cathode
Statement II : During the Hall-Heroult electrolysis process, purified $Al _2 O _3$ is mixed with $Na _3 AlF _6$ to lower the melting point of the mixture
In the light of the above statements, choose the most appropriate answer from the options given below:- JEE Main - 2023
- Chemistry
- General Principles and Processes of Isolation of Elements
The reaction that does NOT take place in a blast furnace between 900 K to 1500 K temperature range during extraction of iron is?
- NEET (UG) - 2023
- Chemistry
- General Principles and Processes of Isolation of Elements
Consider the following statements about the oxides of halogens
A. At room temperature, OF2; is thermally stable
B. Order of stability of oxides of halogens is I > Br > Cl
C. I2O5 is used in the estimation of CO
D. ClO2; is used as a bleaching agent
The correct statements are- TS EAMCET - 2023
- Chemistry
- General Principles and Processes of Isolation of Elements
- Which of the following ore is not in oxide form?
- GUJCET - 2023
- Chemistry
- General Principles and Processes of Isolation of Elements
Questions Asked in UP CPMT exam
- The concepts of 'struggle for existence' and 'survival of the fittest' are essential parts of the evolutionary theory given by
- UP CPMT - 2015
- What Are The Evidences For Evolution?
- Which of the following is a gymnosperm in which vessels are found?
- UP CPMT - 2015
- Kingdom Plant
- If earth suddenly shrinks by one-third of its present radius, the acceleration due to gravity will be
- UP CPMT - 2015
- Gravitation
- If a wire is stretched to make it $0.1\%$ longer, its resistance will
- UP CPMT - 2015
- Current electricity
- Boiling point of chloroform was raised by $0.323 \,K$, when $0.5143\, g$ of anthracene was dissolved in its $35 \,g$. Molecular mass of anthracene is $(K_b$ for $CHCl_3 = 3.9 \,K \,kg\,, mol^{-1})$
- UP CPMT - 2015
- Solutions
Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal