Which of the following is an epsom salt?
- $ 2CaS{{O}_{4}}.{{H}_{2}}O $
- $ MgS{{O}_{4}}.7{{H}_{2}}O $
- $ MgS{{O}_{4}}.2{{H}_{2}}O $
- $ BaS{{O}_{4}}.2{{H}_{2}}O $
The Correct Option is B
Solution and Explanation
Top Manipal Chemistry Questions
- Which one of the following is a chain growth polymer?
- Which of these do not form Grignard reagent?
- Which of the following will not function as a buffer solution? [a] $ NaCl $ and $ NaOH $ [b] $ NaOH $ and $ N{{H}_{4}}OH $ [c] $ C{{H}_{3}}COON{{H}_{4}} $ and $ HCl $ [d] Borax and boric acid
- Which of the following statements is true for the electrochemical Daniell cell?
- Which of the following species represent the example of $dsp^2$ -hybridization ?
Top Manipal Questions
- Uricotelism is found in
Five equal resistances each of resistance \(R\) are connected as shown in the figure. A battery of \(V\) volts is connected between \(A\) and \(B\). The current flowing in \(AFCEB\) will be
- Which one of the following is a chain growth polymer?
- Which of these do not form Grignard reagent?
- Which of the following will not function as a buffer solution? [a] $ NaCl $ and $ NaOH $ [b] $ NaOH $ and $ N{{H}_{4}}OH $ [c] $ C{{H}_{3}}COON{{H}_{4}} $ and $ HCl $ [d] Borax and boric acid
Concepts Used:
Group 16 Elements
The group 16 elements (oxygen group elements) of the periodic classification are also known as chalcogens because most of the copper ores have copper in the form of oxides and sulphides. The word chalcogen means “ore formation” which is derived from the Greek word “Chalcos” (Ore) and “gen” (formation).
There are 5 elements that come under Group 16 of the Modern Periodic Table namely:
- Oxygen (O)
- Sulphur (S)
- Selenium (Se)
- Tellurium (Te)
- Polonium (PO)
Electronic Configuration:
The general electronic configuration of the chalcogens can be written as ‘ns2np4’, where ‘n’ denotes the value of the principal quantum number corresponding to the valence shell of the element.
The electron configuration of the synthetic element livermorium (believed to be a chalcogen) is predicted to be [Rn]5f146d107s27p4.
Metallic Nature of the Group 16 Elements:
- Oxygen and sulfur are classified as non-metals.
- Selenium and tellurium are classified as metalloids.
- Under standard conditions, polonium exhibits metallic characteristics. However, it is important to note that polonium is a radioactive element.