Convert $1$-Bromopropane to $2$-Bromopropane.

Important Questions on Sample Question Paper 2

HARD

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 7

 In the alkane, ${\mathrm{CH}}_3{\mathrm{CH}}_2-\mathrm{C}{\left({\mathrm{CH}}_3\right)}_2-{\mathrm{CH}}_2\mathrm{CH}{\left({\mathrm{CH}}_3\right)}_2$, identify $1^{°}, 2^{°}$and $3°$ carbon atoms and give the number of $\mathrm{H}$-atoms bonded to each one of these.
 

HARD

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 7

An alkane ${\mathrm{C}}_8{\mathrm{H}}_{18}$ is obtained as the only product on subjecting a primary alkyl halide to Wurtz reaction. On monobromination this alkane yields a single isomer of a tertiary bromide. Write the structure of alkane and the tertiary bromide.

HARD

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 8

The relative reactivity of $1^{°}, 2^{°}, 3^{°}$ hydrogen's towards chlorination is $1:3.8:5$. Calculate the percentages of all monochlorinated products obtained from $2$-Methylbutane.        

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 9

Explain the following: Gallium has higher ionisation enthalpy than aluminium.
 

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 9

Boron does not exist as ${\mathrm{B}}^{3+}$ion.

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 9

Aluminium forms ${\left[{\mathrm{AlF}}_6\right]}^{3-}$ion but boron does not form ${\left[{\mathrm{BF}}_6\right]}^{3-}$ion.

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 9

Which of the following is not hydrolysed by what and why?
${\mathrm{BF}}_3, {\mathrm{BCl}}_3$ and ${\mathrm{BBr}}_3$
 

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 16 - Sample Question Paper 2>SAMPLE QUESTION PAPER 2>Q 9

How can you explain higher stability of ${\mathrm{BCl}}_3$ as compared to ${\mathrm{TlCl}}_3$?