JEE Main 2019 (Online) 12th January Morning Slot | JEE Main Year Wise Previous Years Questions - ExamSIDE.Com

1

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

The correct order for acid strength of compounds :

CH $$ \equiv $$ CH, CH₃–C $$ \equiv $$ CH and CH₂ = CH₂ is as follows

A

CH $$ \equiv $$ CH > CH₂ = CH₂ > CH₃ – C $$ \equiv $$ CH

B

CH₃ – C $$ \equiv $$ CH > CH₂ = CH₂ > HC $$ \equiv $$ CH

C

HC $$ \equiv $$ CH > CH₃ – C $$ \equiv $$ CH > CH₂ = CH₂

D

CH₃ – CH $$ \equiv $$ CH > CH $$ \equiv $$ CH > CH₂ = CH₂

2

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

The major product of the following reaction is –

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 232 English

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 232 English

A

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 232 English Option 1

B

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 232 English Option 2

C

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 232 English Option 3

D

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 232 English Option 4

3

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

The metal d-orbitals that are directly facing the ligands in K₃[Co(CN)₆] are -

A

d_x²_$$-$$y² and d_z²

B

d_xy, d_xz and d_yz

C

d_xz, d_yz and d_z²

D

d_xy and d_{x² $$-$$ y²}

4

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

JEE Main 2019 (Online) 12th January Morning Slot Chemistry - Alcohols, Phenols and Ethers Question 146 English

can not be prepared by -

A

CH₃CH₂COCH₃ + PhMgX

B

PhCOCH₃ + CH₃CH₂MgX

C

PhCOCH₂CH₃ + CH₃MgX

D

HCHO + PhCH(CH₃)CH₂MgX

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