Methods for Ester Synthesis

Q. 45. Explain why rate of exothermic reaction increases with increasing temperature. (according to le chateliar principle backward reaction should favour)

Q. 19.Which of the following will react with water? a)CHCl3 b)Cl3CCHO c)CCl4 d)ClCH2CH2Cl

Q. which of the following has highest chlorine content (1) pyrene (2) DDT (3) Chloral (4) Gammaxene

Q.

The integrating factor of the differential equation $\left(1+x^2\right)\frac{dy}{dx}+y=e^{{\tan }^{-1}x}$ is

1. ${\tan }^{-1}x$

2. $1+x^2$

3. $e^{{\tan }^{-1}x}$

4. ${\log }_e\left(1+x^2\right)$

Q. Is N2O5 planar or nonplanar structure.

Q. 9.What is the cross-section of octahedral void?

Q.

For the following data, the equation of the line of regression of $y$ on $x$ is

$x$	$2$	$4$	$6$	$8$
$y$	$6$	$8$	$12$	$15$

1. $y=x+2$

2. $y=x+2.5$

3. $y=1.55x+2.5$

4. $y=1.55x+2$

Q.

Pick out the correct statement with respect to $\left[Mn\right(CN{)}_6{]}^{3-}$

1. It is $s{p}^3{d}^2$ hybridised and octahedral

2. It is $s{p}^3{d}^2$ hybridised and tetrahedral
   

3. It is $d^{2}s{p}^3$ hybridised and octahedral
   

4. It is $ds{p}^2$ hybridised and square planar

Q. what does directional property of a compound mean

Q. What is the solution of the differential equation $x\frac{dy}{dx}+y=x\ln x$ ?

1. $xy=\frac{x^2}{2}\ln x-\frac{x^2}{4}$
2. $xy=\frac{x^2}{2}\ln x-\frac{x^2}{4}+c$, where c is an arbitrary constant
3. $xy=\frac{x^2}{2}\ln x-\frac{x^3}{4}+c$, where c is an arbitrary constant
4. $xy=\frac{x^3}{6}\ln x-\frac{x^2}{4}+c$, where c is an arbitrary constant

Q. what happens when acetylene is treated with ammoniacalAgNO3solution ?

Q. WHAT IS A MEANING OF ENTITES

Q.

In the above reaction, the product 'X' is:

1. $C{H}_3-\stackrel{OH}{\stackrel{|}{C}}H-C{H}_2-O-\underset{O}{\underset{||}{C}}-C{H}_2-C{H}_3$
2. $C{H}_3-\stackrel{OH}{\stackrel{|}{C}}H-C{H}_2-O-\underset{OH}{\underset{|}{C}}H-C{H}_2-C{H}_3$
3. $C{H}_3-C{H}_2-\underset{OH}{\underset{|}{C}}H-O-\underset{O}{\underset{||}{C}}-C{H}_2-C{H}_3$
4. $C{H}_3-C{H}_2-\underset{OK}{\underset{|}{C}}H-O-\underset{O}{\underset{||}{C}}-C{H}_2-C{H}_3$

Q. For given reaction sequence, select correct option.

1. 
2. 
3. 
4. Product C gives positive Tollen's test

Q. The solution of the differential equation $\frac{dx}{dy}-\frac{x\log x}{1+\log x}=\frac{e^y}{1+\log x}$ if $y\left(1\right)=0$, is :

1. $x^x=e^{y{e}^y}$
2. $e^y=x^{e^y}$
3. $x^x=y{e}^y$
4. none of these

Q. \( NaBH _{4}= \) \( A \frac{ H _{2} 0 / H ^{+}}{4} \rightarrow B \)

Q. An integrating factor of the differential equation $x\frac{dy}{dx}+y\log x=x{e}^x{x}^{-\frac{1}{2}\log x},(x>0)$ is

1. $x^{\log x}$
2. $(\sqrt{x}{)}^{\log x}$
3. $(\sqrt{e}{)}^{\log x}$
4. $e^{x^2}$

Q. Draw all the possible confirmations of butane and arrange them in the order of their stability.

Q. If for $x\ge 0$ , $y=y\left(x\right)$ is the solution of the differential equation $(1+x)dy=\left[\right(1+x{)}^2+y-3]dx,y(2)=0,$ then $y\left(3\right)$ is equal to

Q. What is quantization?

Q. The product of the reaction sequence that follows is:

1. 
2. 
3. 
4.