Advertisements
Advertisements
प्रश्न
Name the following.
Radioactive alkali metal.
Advertisements
उत्तर
Radioactive alkali metal - Francium (Fr)
APPEARS IN
संबंधित प्रश्न
Explain the following.
Standard reduction potential of alkali metals have high negative values.
Explain the following.
BeCl2 is covalent while MgCl2 is ionic.
Explain the following.
Alkaline earth metals have low values of electronegativity; which decreases down the group.
Write a balanced chemical equation for the following.
\[\ce{CO2}\] is passed into a concentrated solution of NaCl, which is saturated with \[\ce{NH3}\].
Write a balanced chemical equation for the following.
A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Answer the following question.
A water sample, which did not give lather with soap, was found to contain \[\ce{Ca(HCO3)2}\] and \[\ce{Mg(HCO3)2}\]. Which chemical will make this water give lather with soap? Explain with the help of chemical reactions.
Name the following.
Alkali metal with smallest atom.
Which of the following is the CORRECT order for alkaline earth metals?
When beryllium is ignited in air, the products are ____________.
Which of the following is radioactive?
Which of the following statements is INCORRECT?
Which of the following is CORRECT for the atomic and ionic radii of alkali metals?
Which of the following is INCORRECT for alkali metals?
Which among the following is used as a source of oxygen in submarine in emergency breathing apparatus?
Which among the following alkali metal chlorides form hydrate?
Beryllium shows diagonal relationship with aluminium. Which of the following similarity is incorrect?
The element that does not form acidic oxide is ______.
KO2 (potassium superoxide) is used in oxygen cylinders in space and submarines because it ______.
Which among the group-15 elements does not exist as tetra atomic molecule?
Which of the following is most soluble in water?
The element of group 2, which forms an amphoteric oxide and a water soluble sulphate is ______.
Which of the following has maximum solubility?
Which of the following is likely to undergo racemisation during alkaline hydrolysis?
Which of the following trend is correct with respect to the reactivity of alkali metal oxides with water?
