Most common reactions of benzene and its derivatives are (A) Nucleoophilic addition reactions (B) Electrophilic subsitution reactions (C) Nucleophilic substitution reactions (D) Electrophilic addition reactions 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
DDT is formed from (A) Benzene and Chlorobenzene (B) Chloral and benzene (C) Chlorobenzene and chlorine (D) Chloral and Chlorobenzene 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Sulphure dioxide affects (A) Plasmodesmata (B) Nucleus (C) Cell wall (D) All membrane systems 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
The vapour density of a gas is 11.2. The volume occupied by 11.2 g of this gas at N.T.P. is (A) 11.2 litres (B) 2.24 litres (C) 22.4 litres (D) 1 litre 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Inter molecular forces in solid hydrogen are (A) Van der Waal forces or London dispersion forces (B) Hydrogen bonds (C) Covalent forces (D) All of these. 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Fluorine does not show positive oxidation states due to the absence of (A) None (B) s-orbitals (C) d-orbitals (D) p-orbitals 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Which of the following is different from the other three oxides? (A) ZnO (B) Cr2O3 (C) SnO (D) MgO 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
If NAis Avogadro’s number, then number of valence electrons in 4.2 g of nitride ions N3-isIf NAis Avogadro’s number, then number of valence electrons in 4.2 g of nitride ions N3-is (A) 3.2 NA (B) 4.2 NA (C) 2.4 NA (D) 1.6 NA 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Which of the following elements is most electronegative? (A) Chlorine (B) Fuorine (C) Nitrogen (D) Oxygen 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Which of the following fluorides of xenon is impossible? (A) XeF6 (B) XeF2 (C) XeF4 (D)XeF3 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021