OA2003

The most common type of reaction in aromatic compounds is

The most common type of reaction in aromatic compounds is Options (a) elimination reaction (b) addition reaction (c) electrophilic substitution…

Who coined the term ecosystem?

Who coined the term ecosystem? Options (a) Ernst Haeckel (b) Charles Elton (c) E. P. Odum (d) A. G. Tansley…

Cyclopentadienyl anion is

Cyclopentadienyl anion is Options (a) aromatic (b) non-aromatic (c) non-planar (d) aliphatic Correct Answer: aromaticExplanation:No explanation available. Be the first…

Which of the following is a strong acid

Which of the following is a strong acid Options (a) HF (b) HCl (c) HBr (d) HI Correct Answer: HIExplanation:No…

The unit of second order reaction rate constant is

The unit of second order reaction rate constant is Options (a) L⁻¹ mol s⁻¹ (b) L² mol⁻² s⁻¹ (c) L…

The standard emf for the cell reaction, 2Cu⁺(aq) → Cu(s) + Cu²⁺(aq)

The standard emf for the cell reaction, 2Cu⁺(aq) → Cu(s) + Cu²⁺(aq) is +0.36 V at 298 K. The equilibrium…

The pH of gastric juice is

The pH of gastric juice is Options (a) 2.0 - 3.0 (b) 2.6 - 6.8 (c) 3.7 - 8.5 (d)…

Which of the following components of blood does not enter into the nephron?

Which of the following components of blood does not enter into the nephron? Options (a) water (b) plasma protein (c)…

The triplet UUU codes for

The triplet UUU codes for Options (a) leucine (b) methionine (c) phenylalanine (d) glycine Correct Answer: phenylalanineExplanation:No explanation available. Be…

The concept on the origin of species by means of Natural Selection was first

The concept on the origin of species by means of Natural Selection was first published in Options (a) 1859 (b)…