1
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The basic structural unit of feldspar, zeolites, mica, and asbestos is :
A
JEE Main 2019 (Online) 12th April Morning Slot Chemistry - p-Block Elements Question 166 English Option 1
B
(SiO4)4–
C
(SiO3)2–
D
SiO2
2
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct set of species responsible for the photochemical smog is :
A
NO, NO2, O3 and hydrocarbons
B
N2, NO2 and hydrocarbons
C
CO2, NO2, SO2 and hydrocarbons
D
N2, O2, O3 and hydrocarbons
3
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product of the following reaction is : JEE Main 2019 (Online) 12th April Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 118 English
A
JEE Main 2019 (Online) 12th April Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 118 English Option 1
B
JEE Main 2019 (Online) 12th April Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 118 English Option 2
C
JEE Main 2019 (Online) 12th April Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 118 English Option 3
D
JEE Main 2019 (Online) 12th April Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 118 English Option 4
4
JEE Main 2019 (Online) 12th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The mole fraction of a solvent in aqueous solution of a solute is 0.8. The molality (in mol kg–1 ) of the aqueous solution is :
A
13.88 × 10–1
B
13.88 × 10–3
C
13.88
D
13.88 × 10–2
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