1
JEE Main 2019 (Online) 12th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The primary pollutant that leads to photochemical smog is :
A
acrolein
B
ozone
C
sulphur dioxide
D
nitrogen oxides
2
JEE Main 2019 (Online) 12th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The INCORRECT match in the following is :
A
$$\Delta $$Go = 0, K = 1
B
$$\Delta $$Go < 0, K < 1
C
$$\Delta $$Go > 0, K < 1
D
$$\Delta $$Go < 0, K > 1
3
JEE Main 2019 (Online) 12th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The INCORRECT statement is :
A
Lithium is least reactive with water among the alkali metals
B
LiCl crystallises from aqueous solution as LiCl.2H2O
C
Lithium is the strongest reducing agent among the alkali metals
D
LiNO3 decomposes on heating to give LiNO2 and O2
4
JEE Main 2019 (Online) 12th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct statement is :
A
leaching of bauxite using concentrated NaOH solution gives sodium aluminate and sodium silicate
B
the Hall-Heroult process is used for the production of aluminium and iron
C
pig iron is obtained from cast iron
D
the blistered appearance of copper during the metallurgical process is due to the evolution of CO2
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