s-Block Element...

Which of the following statements is true about the difference between beryllium and magnesium?

One of the following is not called alkaline earth metal.

The diagonal relationship exists between

Directions: The following question has four choices out of which ONLY ONE is correct.

Which of the following would react most vigorously with water?

Group I elements of the periodic table are collectively known as

Monovalent sodium and potassium ions found in large proportions in biological fluids. They help in

MgSO₄ is soluble in water, but BaSO₄ is not because

The s-block elements of the Periodic Table have only

A crystalline salt Na₂SO₄.xH₂O loses 55.9% of its weight on heating. The formula of the crystalline salt is

Inert pair effect is observed when

Which of the following alkaline earth metal hydroxides is amphoteric in nature?

Directions: The following question has four choices out of which ONLY ONE is correct.

Flame test is not given by 

Thermally, the most stable alkaline earth metal carbonate is 

Soda ash is

Compounds of alkaline earth metals are less soluble in water than the corresponding alkali metal salts because of their

Potassium superoxide finds usage in breathing equipment and safeguards the user to breathe in oxygen generated internally in the apparatus, without being exposed to toxic fumes outside. The supply of oxygen is due to

(i) slow decomposition of KO₂
(ii) reaction of superoxide with moisture in the exhaled air
(iii) reaction of KO₂ with CO₂ in the exhaled air

Which of the following statements is true regarding isolation of Na and K metals?

Alkaline earth metals are not found free in nature because of

The decreasing order of thermal stability of alkaline earth metal carbonates, MgCO₃, CaCO₃, BaCO₃ and SrCO₃, is

Which of the following compounds is used as an antacid to neutralise excess acid in the stomach?

Group IlA of the periodic table consists of the six elements are collectively known as

One of the following is highly radioactive

The substance used in the preparation of HCl is

Calcium and Magnesium belong to the category of

The most common alum is

Which of the following compounds is known as "photographer's fixer"?

Sodium and potassium belong to the category of

A cracking sound is produced when crystals of NaCl are thrown in fire. This is due to the

Which of the following is used for taking the X-ray spectra of the digestive system?

Increase in ionic radii of alkali metals  in aqueous solution (hydration) follow the order