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प्रश्न
Name the following.
The most abundant element in the universe.
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उत्तर
The most abundant element in the universe - Hydrogen (H)
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संबंधित प्रश्न
Explain the following.
Alkaline earth metals have low values of electronegativity; which decreases down the group.
Write a balanced chemical equation for the following.
A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Write a balanced chemical equation for the following.
Magnesium is heated in air.
Name the following.
Radioactive alkali metal.
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 statements is INCORRECT?
Identify the metals having electronic configuration of [Ar]4s2 and [Kr]5s2 respectively.
Which among the following is used as a source of oxygen in submarine in emergency breathing apparatus?
Which among the following chlorides of alkali metal is deliquescent?
Which among the following elements has highest ionisation enthalpy and bears a diagonal relationship with aluminium?
What is the electronic configuration of third element of group-2 in periodic table?
Which among the following alkali metal chlorides form hydrate?
The element that does not form acidic oxide is ______.
Which of the following bicarbonates does not exist as a solid?
Which among the following elements of group-2 exhibits anomalous properties?
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?
