JEE Main 2019 (Online) 12th April Morning Slot | p-Block Elements Question 111 | Chemistry

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JEE Main 2019 (Online) 12th April Morning Slot

MCQ (Single Correct Answer)

-1

The basic structural unit of feldspar, zeolites, mica, and asbestos is :

JEE Main 2019 (Online) 12th April Morning Slot Chemistry - p-Block Elements Question 111 English Option 1

(SiO₄)^4–

(SiO₃)^2–

SiO₂

JEE Main 2019 (Online) 10th April Evening Slot

MCQ (Single Correct Answer)

-1

The noble gas that does not occur in the atmosphere is :

JEE Main 2019 (Online) 10th April Evening Slot

MCQ (Single Correct Answer)

-1

The number of pentagons in C₆₀ and trigons (triangles) in white phosphorus, respectively, are :

12 and 3

20 and 3

20 and 4

12 and 4

JEE Main 2019 (Online) 9th April Evening Slot

MCQ (Single Correct Answer)

-1

The amorphous form of silica is :

kieselguhr

quartz

tridymite

cristobalite

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