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प्रश्न
What is the action of sodium on arsenic.
उत्तर
\[\ce{3 NA + AS -> Na3AS}\]
APPEARS IN
संबंधित प्रश्न
The element that does NOT exhibit allotropy is
- As
- Sb
- Bi
- N
Explain how does nitrogen exhibit anomalous behaviour amongst group 15 elements.
Nitrogen does not form pentahalide.
Why is BiH3 the strongest reducing agent amongst all the hydrides of Group 15 elements?
Discuss the general characteristics of Group 15 elements with reference to their electronic configuration, oxidation state, atomic size, ionisation enthalpy and electronegativity.
Why does nitrogen show catenation properties less than phosphorus?
Among the hydrides of Group-15 elements, which have the maximum basic character?
Account for the following :
Noble gases have very low boiling points.
The most common oxidation states of nitrogen are ____________.
In which of the following compound, nitrogen shows the oxidation state of +5?
Which among the following forms basic oxide?
Collectively the elements of group 15 are called:
Which of the following species has the highest dipole moment?
With respect to protonic acids, which of the following statement is correct?
Elements of group-15 form compounds in +5 oxidation state. However, bismuth forms only one well-characterised compound in +5 oxidation state. The compound is ______.
Which of the following element will form acidic oxides of type E2O3?
Which of the following is the strongest reducing agent?
Acidity of diprotic acid in aqueous solution increases in order.
The oxidation state of central atom in the anion of compound \[\ce{NaH2PO2}\] will be ______.
Which of the following statements are correct for \[\ce{SO2}\] gas?
(i) It acts as bleaching agent in moist conditions.
(ii) It’s molecule has linear geometry.
(iii) It’s dilute solution is used as disinfectant.
(iv) It can be prepared by the reaction of dilute \[\ce{H2SO4}\] with metal sulphide.
Match the species given in Column I with the shape given in Column II and mark the correct option.
| Column I | Column II |
| (A) \[\ce{SF4}\] | (1) Tetrahedral |
| (B) \[\ce{BrF2}\] | (2) Pyramidal |
| (C) \[\ce{BrO^{-}3}\] | (3) Sea-saw shaped |
| (D) \[\ce{NH^{+}4}\] | (4) Bent T-shaped |
Match the items of Columns I and II and mark the correct option.
| Column I | Column II | |
| (A) | Its partial hydrolysis does not | (1) He |
| (B) | It is used in modern diving apparatus | (2) XeF6 |
| (C) | It is used to provide inert atmosphere for filling electrical bulbs |
(3) XeF4 |
| (D) | Its central atom is in sp3d2 hybridisation | (4) Ar |
In \[\ce{PCl5}\], phosphorus is in sp3d hybridised state but all its five bonds are not equivalent. Justify your answer with reason.
Account for the following:
Zinc is a comparatively a soft metal, iron and chromium are typically hard.
The electronic configuration of Cu (atomic number 29) is
The element With maximum ionisation potential is
The correct order of increase acidic strength of CIOH(1), BrOH (II) and lOH (iii) is.
