Chemistry questions
29404 published questions with worked solutions.
- Consider the ions/molecules O_ 2 ^ + , O_ 2 , O_ 2 ^ - , O_ 2 ^ 2- . For increasing bond order the correct option is:
- The ( E/ T)_ P of different types of half cells are as follows: A 1 10^ -4 , B 2 10^ -4 , C 0.1 10^ -4 , D 0.2 10^ -4 (Where E is...
- Consider the following reaction : 2HSO_ 4 ^ - (aq) (1) Electrolysis, (2) Hydrolysis 2HSO_ 4 ^ - + 2H^ + + A. The dihedral angle...
- The correct order of melting points of hydrides of group 16 elements is:
- Polar stratospheric clouds facilitate the formation of :
- Given below are two statements : Statement I: In 'Lassaigne's Test', when both nitrogen and sulphur are present in an organic...
- Which of the following sets are correct regarding polymer ? (A) Copolymer : Buna-S (B) Condensation polymer : Nylon-6,6 (C)...Not in JEE Main or NEET syllabus
- A chemical which stimulates the secretion of pepsin is:Not in JEE Main or NEET syllabus
- Which statement is not true with respect to nitrate ion test ?
- For complete combustion of methanol CH_ 3 OH(l) + (3/2)O_ 2 (g) CO_ 2 (g) + 2H_ 2 O(l), the amount of heat produced as measured...
- A 0.5 percent solution of potassium chloride was found to freeze at −0.24°C. The percentage dissociation of potassium chloride is...
- 50 mL of 0.1 M CH_ 3 COOH is being titrated against 0.1 M NaOH. When 25 mL of NaOH has been added, the pH of the solution will be...
- A flask is filled with equal moles of A and B. The half lives of A and B are 100 s and 50 s respectively and are independent of...
- 2.0 g of H_ 2 gas is adsorbed on 2.5 g of platinum powder at 300 K and 1 bar pressure. The volume of the gas adsorbed per gram of...Not in JEE Main or NEET syllabus
- The spin-only magnetic moment value of the most basic oxide of vanadium among V_ 2 O_ 3 , V_ 2 O_ 4 and V_ 2 O_ 5 is _____ B.M.
- The spin-only magnetic moment value of an octahedral complex among CoCl_ 3 4NH_ 3 , NiCl_ 2 6H_ 2 O and PtCl_ 4 2HCl, which upon...
- Compound 'P' on nitration with dil. HNO_ 3 yields two isomers (A) and (B) show the intramolecular and intermolecular hydrogen...
- The number of oxygens present in a nucleotide formed from a base, that is present only in RNA is _____.
- In which one of the following sets all species show disproportionation reaction ?
- Match List-I with List-II. List-I (Parameter): (a) Cell constant (b) Molar conductivity (c) Conductivity (d) Degree of...