Nomenclature of Carboxylic Acids

Q.

The sum of infinite terms of a G.P. $x$ and on squaring each term of it, the will be $y$, then the common ratio of this series is

1. $\frac{x^2-y^2}{x^2+y^2}$

2. $\frac{x^2+y^2}{x^2-y^2}$

3. $\frac{x^2-y}{x^2+y}$

4. $\frac{x^2+y}{x^2-y}$

Q.

Acetylene has 'garlic odour' due to

1. PH₃

2. H₃PO₄

3. Both a & b

4. H₂S

Q. What is the IUPAC name of CHO-CH2-CH2-CH2-CH2-CN ? Should we count aldehyde group in main chain or not ?

Q. Is H- a lewis acid or lewis base ??

Q. Is $y\frac{dy}{dx}=cosx$ a linear ODE?

1. True
2. False

Q. Equivalent resonating structures are observed in (1) Acetate ion (3) Phosphate ion (2) Nitrate ion (4) All of these

Q. If the curve $y=y\left(x\right)$ represented by the solution of the differential equation $(2x{y}^2-y)dx+xdy=0$, passes through the intersection of the lines, $2x-3y=1$ and $3x+2y=8$, then $|y\left(1\right)|$ is equal to

Q. Let $\frac{dy}{dx}+y=f\left(x\right)$ where $y$ is a continuous function of $x$ with $y\left(0\right)=1$ and $f\left(x\right)=\{\begin{array}{cc}{e}^{-x},& 0\le x\le 2\\ e^{-2},& x>2\end{array}$.
Which of the following hold(s) good?

1. $y\left(1\right)=2e^{-1}$
2. $y^{\prime }\left(1\right)=-e^{-1}$
3. $y\left(3\right)=-2e^{-3}$
4. $y^{\prime }\left(3\right)=-2e^{-3}$

Q. The name of the compound having the structure $ClC{H}_{2}C{H}_{2}COOH$ is

1. 3-chloropropanoic acid

2. 2-chloropropanoic acid

3. 2-chloroethanoic acid
4. Chlorosuccinic acid

Q. what chemical is present in Benadryl? which amino group is present in chemical present in benadryl? ​

Q. $\frac{dy}{dx}=y^2$ is a linear ODE.

1. True
2. False

Q. which of the following doesnot act as bronsted acid? (a)NH_{4^+} (b)HCO_{3^-} (c)HSO_{3^-} (d)CH_{3^{COO^{}

Q. How many electrons are present in 3.2g sulphide ions ?

Q. How to calculate B.O of Sulphate ion?

Q. Formal charge on carbon atom in carbonate ion??

Q. Write a labeled equation for the action on concentrated sulphuric acid on propanol

Q. what is 3 dimentional concept of NaCl ion