“Discover S-block elements in the periodic table, including alkali and alkaline earth metals, and their unique properties and reactions.”
Chemistry MCQs FOR Class 12 Chapter 2
The word alkali is derived from which language: Arabic
Dolomite is a carbonate of: Mg
Which metal oxide is insoluble in water: MgO
Which one of the following is not an alkali metal: Radium
The mineral CaSO4.2H2O has the general name: Gypsum
Which elements are deposited at the cathode during the electrolysis of brine in diaphragm cell: H2
Which one of the following does not belong to alkaline earth metals: Rn
Which is the least reactive of all the alkali metals: Li
Which of the following gas will turn lime water milky: CO2
The oxides of beryllium are: Amphoteric
Which one does not belong to the alkaline earth metals: Rn
#NAME: Rn
Nelson’s cell is used to prepare: NaOH
The most metallic elements from the following is: Arsenic
The Milk of magnesia is used for the treatment of: Acidity
Chile saltpeter has the chemical formal: NaNO3
Point out the element which forms super oxide: K
The oxide of beryllium is: Amphoteric
Which element reacts with carbon to form metal carbide: Li
The word alkali is derived from which language: Arabic
Alkali metal whose carbonate is is relatively less stable and decomposes giving its oxides is: Li
Which substance is used to lower the melting point of NaCl in Down’s cell: CaCl2
Oxides of alkaline earth metal are: Basic
When carbon di oxide is bubbled through lime water, white precipitate is formed This precipitate is: CaCO3
Which is more basic: RbOH
The Milk of magnesia is used for the treatment of: Acidity
Ca Mg3 (SiO3)2 is the composition of: Asbestos
Important : Review all previous years’ 12 class past papers for comprehensive practice and better exam preparation.