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
Bond angle is minimum for (A) H2Te (B) H2O (C) H2S (D) H2Se 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Octane number can be changed by (A) alkylation (B) All of these (C) Isomerization (D) Cyclization 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
With increasing principle quantum number, the energy difference between adjacent energy levels in H atom (A) Increases (B) Decrease for the low value of Z and increases for a higher value of Z. (C) Decreases (D) Remain constant 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
A solution of sodium sulphate was electrolysed using some inert electrodes. The products at the electrodes are (A) O2, SO2 (B) O2, Na (C) O2, H2 (D) O2, S2O2-8 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Sea weeds are important source of Bromine Iron Iodine Chlorine 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
Vital force theory was rejected by (A) Kolbe (B) Wholer (C) Lavoiser (D) Berzelius 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021
The IUPAC name of the compound having the formula (CH3)3C – CH = CH2is (A) 1, 1-Dimethyl-3-butene (B) 3, 3,-Dimethyl-1-butene (C) 3, 3, 3,-Trimethyl-1-propene (D) 1, 1, 1-Trimethyl-3-propene 0 Chemistry MCQs Author: MCQs Master Report : If answer is wrong. August 4, 2021