Class 12th

The right option for the statement "Tyndall effect is exhibited by", is :

The pK_a of dimethylamine and pK_a of acetic acid are 3.27 and 4.77 respectively at T(K). The correct option for the pH of dimethylammonium acetate solution is :

What is the IUPAC name of the organic compound formed in the following chemical reaction?
Acetone --(i) C₂H₅MgBr, dr Ether (ii) H₂O₄H⁺--> Product

An organic compound contains 78% (b wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is : [Atomic wt. of C is 12, H is 1]

Given below are two statements :
Statement I : Aspirin and Paracetamol belong to the class of narcotic analgesics.
Statement II : Morphine and Heroin are non-narcotic analgesics.
In the right of the above statements, choose the correct answer from the options given below.

The major product of the following chemical reaction is :
CH₃CH(CH₃)CH=CH₂ + HBr --(C₆H₅CO)₂O₂--> ?

The following solutions were prepared by dissolving 10 g of glucose (C₆H₁₂O₆) in 250ml of water (P₁), 10 g of urea (CH₄N₂O) in 250ml of water (P₂) and 10 g of sucrose (C₁₂H₂₂O₁₁) in 250ml of water (P₃). The right option for the decreasing order of osmotic pressure of these solutions is :

Identify the compound that will react with Hingsberg's reagent to give a solid which dissolves in alkali.

The molar conductance of NaCl, HCl and CH?COONa at infinite dilution are 126.45, 426.16 and 91.0 cm² mol¯¹ respectively. The molar conductance of CH?COOH at infinite dilution is. Choose the right option for your answer.

The RBC deficiency is deficiency disease of :