Non-metals and their compounds

251.Marshallic acid is also known as –
 
A. H₂SO₅
 
B. H₂S₂O₇
 
C. H₂S₂O₈
 
D. H₂SO₄
 
Option”C” is correct
252.Which halogen element combines with xenon to form the maximum number of compounds?
 
A. florin
 
B. chlorine
 
C. bromine
 
D. iodine
 
Option”A” is correct
253.The halogen found by Teplon is –
 
A. chlorine
 
B. florin
 
C. bromine
 
D. iodine
 
Option”B” is correct
254.Which of the following is not a member of the halogen family?
 
A. florin
 
B. chlorine
 
C. morphine
 
D. bromine
 
Option”C” is correct
255.The most reactive among halogens is –
 
A. florin
 
B. chlorine
 
C. bromine
 
D. iodine
 
Option”A” is correct
256.Halogen element is –
 
A. Na and K
 
B. F, Cl, Br, I and At
 
C. Mg and Ca
 
D. He and Ne
 
Option”B” is correct
257.The atomic number of chlorine is –
 
A. 7
 
B. 9
 
C. 11
 
D. 17
 
Option”D” is correct
258.Which of the following gas is used as tear gas?
 
A. hydrogen
 
B. sulfur dioxide
 
C. nitrogen
 
D. chlorine
 
Option”D” is correct
259.Which of the following gas is colourful?
 
A. oxygen
 
B. chlorine
 
C. hydrogen
 
D. nitrogen
 
Option”B” is correct
260.What is the most commonly used bleaching reagent?
 
A. alcohol
 
B. chlorine
 
C. Sodium chloride
 
D. carbon dioxide
 
Option”B” is correct