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Questions
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1
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which purification technique is used for high boiling organic liquid compound (decomposes near its boiling point)?
A
Simple distillation
B
Steam ditillation
C
Fractional distillation
D
Reduced pressure distillation
2
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
When silver nitrate solution is added to potassium iodide solution then the sol produced is :
A
AgI / I$$-$$
B
AgI / Ag+
C
KI / NO$$_3^ - $$
D
AgNO3 / NO$$_3^ - $$
3
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Nitrogen can be estimated by Kjeldahl's method for which of the following compound?
A
JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Practical Organic Chemistry Question 28 English Option 1
B
JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Practical Organic Chemistry Question 28 English Option 2
C
JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Practical Organic Chemistry Question 28 English Option 3
D
JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Practical Organic Chemistry Question 28 English Option 4
4
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :

Statement I : Retardation factor (Rf) can be measured in meter/centimeter.

Statement II : Rf value of a compound remains constant in all solvents.

Choose the most appropriate answer from the options given below :
A
Statement I is true but statement II is false
B
Statement I is false but statement II is true
C
Both statement I and statement II are true
D
Both statement I and statement II are false
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