Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Which of the following is not a correct statement?
"A" in the below reaction is: (Note: Reaction scheme is missing from the provided text)
Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be:
Match List-I with List-II: List-I (Vitamins) A. Vitamin K B. Vitamin $\text{B}_{12}$ C. Vitamin C D. Vitamin $\text{B}_1$ List-II (Deficiency/other name/ property) I. RBC deficient in haemoglobin II. Bleeding gums III. Thiamine IV. Fat soluble Choose the correct answer from the options given below:
Which orbital does the additional electron occupy when $O_{2}$ is converted to the $O_{2}^{-}$ ion?
The correct corresponding order of names of four aldoses with configuration given below respectively, is:
Which one is not a D-sugar?
A species that does not exhibit paramagnetism is:
The total number of $\pi$-bond electrons in the following structure is:
The correct statements regarding "Denaturation" are: (a) Denaturation of proteins causes the loss of secondary and tertiary structures of the protein. (b) Denaturation leads to the conversion of a double strand of DNA into a single strand. (c) Denaturation affects the primary structure which gets distorted.
The correct order of increasing bond order among the given is:
The rate of the reaction $2NO + Cl_2 \rightarrow 2NOCl$ is given by the rate equation $\text{rate} = k[NO]^2[Cl_2]$. The value of the rate constant can be increased by:
For a cell involving one electron $E^\ominus_{\text{cell}} = 0.59 \text{ V}$ at $298 \text{ K}$. The equilibrium constant for the cell reaction is: [Given that $\frac{2.303 RT}{F} = 0.059 \text{ V}$ at $T = 298 \text{ K}$]
The bond order of 1.5 is shown by:
The correct order of increasing bond angles in the following species is:
The rate of a first-order reaction is $1.5 \times 10^{-2} \text{ mol L}^{-1} \text{ min}^{-1}$ at $0.5 \text{ M}$ concentration of the reactant. The half-life of the reaction is:
Which one is the most reactive toward $S_N1$ reaction?
Which of the following species contains three bond pairs and one lone pair around the central atom?
The correct order of C-O bond length among CO, $CO_3^{2-}$, and $CO_2$ is:
What is the correct order of ionic mobility of the following ions in an aqueous solution?