Acids and Bases
Acids and Bases We use acids, and bases on every day of our lives, and these substances are also incredibly useful in biology and medicine. Our everyday diets contain acidic foods lemon juice, limes, grapes, pomegranates, grapefruits, blueberries, pineapples, vinegar, tamarind, curd and basic foods Almonds. Spinach, Garlic, Broccoli, Basil, Red Onion, Baking soda etc. […]
A Weight Loss ‘Miracle Drug’ Sparks Controversy: The Ozempic Ethics Problem.
A strange thing! just imagine a medicine or drug which is first made to control type 2 diabetes, but later on it was found that it has a surprising weight loss effect on body . This medicine is Semaglutide, popularly well known by brand names as Ozempic, Wegovy, and Rybelsus. As more people use Semaglutide for […]
FDA Approves Sitryx to Begin Clinical Trials for New Drug for Atopic Dermatitis.
The biopharmaceutical company Sitryx Therapeutics,from Oxford, UK, has received FDA approval to begin testing its new drug SYX-5219 in patients with moderate to severe atopic dermatitis (AD). This allows the company to start a Phase 1b clinical trial in the U.S. in early 2026. What Is SYX-5219? SYX-5219 is a first-of-its-kind oral anti-inflammatory medicine.SYX-5219 is […]
C.B.S.E. Chemistry XII – Solutions(NCERT) (76 MCQs with Explanations)
A solution is best defined as a: Heterogeneous mixture of two or more components. Homogeneous mixture of two or more components. Pure substance with a fixed composition. Mixture where components are chemically bonded. Answer: (b) Homogeneous mixture of two or more components. Explanation: The sources define solutions as homogeneous mixtures of two or more components, […]
MCQ ON POLY NUCLEAR HYDROCARBON (PAH)(PHENANTHRENE,ANTHRACENE,NAPHTHALENE)AND ITS DERIVATIVES.
1.Naphthalene is the largest single component of which coal-tar fraction? a) Light oil b) Middle oil c) Heavy oil d) Anthracene oil Answer: b) Middle oil Explanation: Naphthalene is obtained mainly by cooling the middle oil fraction (160–230°C) during coal-tar distillation, where it crystallizes out. 2.Which position does naphthalene most readily undergo electrophilic substitution? […]
MCQ ON AROMATIC CARBOXYLIC ACID(BENZOIC ACID)
What is the pKa value of benzoic acid? A) 3.19 B) 4.19 C) 5.19 D) 2.19 Answer: B Explanation: Benzoic acid has a pKa of 4.19, indicating it is a weak acid. Why are aromatic carboxylic acids generally more acidic than aliphatic carboxylic acids? A) Due to +I effect of the alkyl chain B) Resonance […]
GASTROINSTETINAL AGENTS(INORGANIC)
What Are Gastrointestinal Agents? Gastrointestinal (GI) agents are the drugs used to treat digestive system disorders affecting the esophagus, stomach, and intestines. These are worked through various mechanisms including acid modulation, mucosal protection, and digestive tract motility regulation. Types of Gastrointestinal Drugs: Classifications & Uses Stomach Acidifiers: Treating Acid Deficiency Conditions What are acidifiers? Acidifiers are the agents used […]
MCQ PRACTICE SET ON PHENOL
Which of the following is the most common industrial method for the preparation of phenol? Hydrolysis of chlorobenzene Oxidation of cumene Decarboxylation of salicylic acid Hydrogenation of benzene What is the name of the reaction that involves the reaction of phenol with chloroform in the presence of sodium hydroxide? Kolbe’s reaction Reimer-Tiemann reaction Wurtz reaction […]
MCQ ON AROMATIC HYDROCARBON(BENZENE)
Molecular formula of benzene is: a) C6H14 b) C6H12 c) C6H6 d) C5H6 Answer: c Which ratio of carbon:hydrogen led to benzene’s unsaturation prediction? a) 1:1 b) 2:1 c) 1:1.33 d) 1:1.5 Answer: c Benzene on catalytic hydrogenation gives: a) Cyclohexane b) Cyclohexene c) Cyclopentane d) Cyclohexadiene Answer: a The number of π-electrons in […]
MCQ ON PHARMACEUTICAL ANALYSIS
Pharmaceutical analysis primarily involves: a) Designing drug delivery systems b) Detection, identification and quantification of compounds c) Performing clinical trials d) Manufacturing processes Answer: b Which technique is mainly qualitative? a) Volumetric titration b) Gravimetry c) Spot tests and colour tests d) Potentiometry Answer: c Which technique is mainly quantitative? a) Thin layer […]
MCQ ON CYCLOALKANE
Which of the following is the general formula of cycloalkanes? a) CnH2n+2 b) CnH2n c) CnH2n-2 d) CnHn Answer: b) CnH2n What is the first member of the cycloalkane series? a) Cyclobutane b) Cyclopropane c) Cyclopentane d) Cyclohexane Answer: b) Cyclopropane Cycloalkanes are also known as: a) Aromatic compounds b) Cycloparaffins c) Cycloalkenes d) Alkynes […]