List of top Chemistry Questions

The order of reactivity of alcohols towards dehydration is:
In qualitative analysis, the cation precipitated as sulphide in Group IV is:
Which of the following is a secondary alcohol?
The monomer of natural rubber is:
The oxidation number of Cr in \( \mathrm{K_2Cr_2O_7} \) is:
The IUPAC name of CH\(_3\)-CH(OH)-COOH is:
Assertion (A): Vitamin D cannot be stored in our body. Reason (R): Vitamin D is fat-soluble vitamin and is not excreted from the body in urine.
Scurvy is caused due to deficiency of
The carbohydrates are stored in animal body as
Which of the following contain $\alpha$-D-glucose units?
a) cane sugar b) milk sugar c) cellulose d) amylose
During the denaturation of proteins, which of the following structures will remain intact?
Sucrose when boiled with dilute HCl gives two functional isomers X and Y. X gives monocarboxylic acid with bromine water but not Y. The number of --OH groups in cyclic structure of X is
The pyrimidine bases found in RNA are
Which of the following is a polysaccharide?
Identify the sets in which enzyme, its source and enzyme reaction are correctly matched:
I) maltase, yeast; proteins $\rightarrow$ peptides
II) diastase, malt; starch $\rightarrow$ maltose
III) zymase, yeast; glucose $\rightarrow$ C$_2$H$_5$OH + CO$_2$
Identify the correct statements regarding the enzymes
I) Almost all enzymes are proteins
II) Enzymes are not specific in nature
III) Enzymes work effectively in the pH range of 5–7
IV) Enzymes work effectively between 310 K and 330 K temperature
Which of the following reagents will oxidise glucose to gluconic acid?
Br$_2$/H$_2$O
HNO$_3$
[Ag(NH$_3$)$_2$]^+ / OH$^-$
The structure of the product 'Z' in the reaction sequence is: \[ \text{CHO} \] \[ \mid \] \[

Consider the following 
Statement-I: Cane sugar is a disaccharide of \(\alpha\)-D-glucose and \(\beta\)-D-fructose
Statement-II: Milk sugar is a disaccharide of \(\alpha\)-D-glucose and \(\beta\)-D-galactose

 

Consider the following statements: Statement-I: Primary structure of protein represents its constitution. Statement-II: \( \alpha \)-Helix and \( \beta \)-pleated sheet structure of protein represent tertiary structure of it. The correct answer is:
Match the following:
List-I (Hormones)List-II (Functions)
A) GlucocorticoidsI) Control the carbohydrate metabolism
B) MineralocorticoidsIII) Control the level of excretion of water and salt by the kidneys
C) ProgesteroneII) Prepares the uterus for implantation of fertilised egg
D) EstradiolIV) In the control of menstrual cycle

Match the following:
List-I (Glycosidic linkage) 
A. $\alpha$-1,4 
B. $\beta$-1,4 
C. $\alpha$-1,4, $\alpha$-1,6 
List-II (Polysaccharide) 
I. Amylose 
II. Amylopectin 
III. Cellulose

Match the following:
The list given below contains essential amino acids that are basic (X) and also non-essential amino acids that are neutral (Y). X and Y, respectively are
a) Lysine
b) Alanine
c) Serine
d) Arginine
e) Tyrosine
Consider the following Statement-I : Lactose is composed of \( \alpha \)-D-glucose and \( \beta \)-D-glucose. Statement-II : Lactose is a reducing sugar. The correct answer is