What is the action of selenium on magnesium metal?
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Solution and Explanation
\[ \text{Mg} + \text Se \to \text{MgSe}. \] Answer: Forms magnesium selenide (MgSe).
Top Questions on p -Block Elements
Given below are two statements.
In the light of the above statements, choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
- p -Block Elements
Given below are two statements:
Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of $\mathrm{p} \pi-\mathrm{p} \pi$ bond with oxygen.
Statement II: Nitrogen does not form halides with +5 oxidation state due to the absence of d-orbital in it.
In the light of the above statements, choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
- p -Block Elements
Given below are the pairs of group 13 elements showing their relation in terms of atomic radius. $(\mathrm{B}<\mathrm{Al}),(\mathrm{Al}<\mathrm{Ga}),(\mathrm{Ga}<\mathrm{In})$ and $(\mathrm{In}<\mathrm{Tl})$ Identify the elements present in the incorrect pair and in that pair find out the element (X) that has higher ionic radius $\left(\mathrm{M}^{3+}\right)$ than the other one. The atomic number of the element (X) is
- JEE Main - 2025
- Chemistry
- p -Block Elements
- Thionyl chloride on reaction with white phosphorus gives a compound of phosphorus 'C' which on hydrolysis gives an oxo acid 'O'. The correct statements about C and O are
I. Shape of 'C' is pyramidal
II. 'O' is a dibasic acid
III. 'O' is a monobasic acid
IV. 'C' on reaction with acetic acid gives 'O'- TS EAMCET - 2025
- Chemistry
- p -Block Elements
- Which one of the following statements is not correct?
- TS EAMCET - 2025
- Chemistry
- p -Block Elements
Questions Asked in Maharashtra Class XII exam
- Complete the correlation:
- Maharashtra Class XII - 2025
- Economic Correlation
- Give economic terms: (i) A desire which is backed by willingness to purchase and ability to pay.
(ii) Deposits that are withdrawable on demand.
(iii) Wear and tear of capital assets, due to their use in the process of production.
(iv) Elasticity resulting from a proportionate percentage change in the quantity demanded due to a proportionate percentage change in price.
(v) The difference between the value of a country’s exports and imports for a given period.- Maharashtra Class XII - 2025
- Economic Terms
- Distinguish between Internal debt and External debt.
- Maharashtra Class XII - 2025
- Government Debt
- Select and rewrite appropriate disorder of respiratory system with the given symptoms : [ sinusitis, emphysema, silicosis and asbestosis, laryngitis ]
- Maharashtra Class XII - 2025
- Human physiology
- Virtual Message:
Imagine, Shubham has to leave for his native place due to emergency work. He and his friend Mahesh had planned to watch a movie at 8.30 pm. Shubham tried to call Mahesh several times but due to connectivity issues he is unable to contact him. Draft a virtual message in about 50/100 words to Mahesh to convey this information. Support your message by giving appropriate reasons.- Maharashtra Class XII - 2025
- Writing Skills