Which of the following is used in NMR spectroscopy? (A) Ne (B) He (C) Ar (D) Kr

If A is a square matrix which of the following is not as symmetric matrix? (A) A-A\' (B) A+A\' (C) A A\' (D) A+B

For which of the following reaction, K_(p) ne K_(c) ?

Which of the following is used to inhibit sprouting of potatoes for storage? (a) gibberellins (b) Auxins (c) NAA (d) IAA

Which of the following is used for artificial ripening of fruits? (a) Auxin (b) ABA (c) Ethylene gas (d) Cytokinin

Which of the following DNA is left handed? (a) B-DNA (b) A-DNA (c) D-DNA (d) Z-DNA

Which of the following is used for dissolution of gold? (a) Hydrochloric acid (b) Sulphuric acid (c ) Nitric acid ,(d) Aqua regia

Which of the following helps us to distinguish colours ? (a) rods (b) rhodopsin (c) cones (d) all of the above

In which one of the following equilibrium , K_p ne K_c ?

Which of the following has the hihest electron gain enthalpy. Give reasons. (a) [Ne]3s^(2)3p^(3) (b) [Ne]3s^(2)3p^(4) ( c) [Ne]3s^(2)3p^(5) , (d) [Ne]3s^(2)3p^(6)

Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starch (A-E) make it useful as a storage material (A) Easily translocated (B) Chemically non-reactive (C) Easily digested by animals (D) Osmotically inactive (E) Synthesized during photosynthesis The useful proeprties ar :