A mixture of champhor and benzoic acid can be separated by
A mixture of champhor and benzoic acid can be separated by Options (a) chemical method (b) sublimation (c) fractional distillation…
7 years ago
BHU2005
The geometry of Ni(CO)₄ and Ni(PPh₃)₂Cl₂ are
The geometry of Ni(CO)₄ and Ni(PPh₃)₂Cl₂ are Options (a) both square planar (b) tetrahedral and square planar respectively (c) both…
7 years ago
Transition metals show paramagnetism
Transition metals show paramagnetism Options (a) due to characteristic configuration (b) high lattice energy (c) due to variable oxidation states…
7 years ago
Which among the following is strong acid
Which among the following is strongest acid Options (a) H(ClO)O₂ (b) H(ClO)O₃ (c) H(ClO)O (d) H(ClO) Correct Answer: H(ClO)O₃Explanation:No explanation…
7 years ago
The ratio of charge and mass would be greatest for
The ratio of charge and mass would be greatest for Options (a) proton (b) electron (c) neutron (d) alpha Correct…
7 years ago
Which of the following vitamins is water soluble as well as an anti-oxidant
Which of the following vitamins is water soluble as well as an anti-oxidant Options (a) vitamin B1 (b) vitamin A…
7 years ago
In Pisum sativum there are 14 chromosomes. How many pairs with different
In Pisum sativum there are 14 chromosomes. How many pairs with different chromosomal composition can be prepared? Options (a) 14…
7 years ago
Human ancestors who left cave paintings were
Human ancestors who left cave paintings were Options (a) neanderthal man (b) cro-magnon man (c) java ape man (d) peking…
7 years ago
The biogenetic law of Haeckel is
The biogenetic law of Haeckel is Options (a) Omnis vivum-e-vivum (b) Omnis cellula-e-cellula (c) ontogeny repeats phylogeny (d) phylogeny repeats…
7 years ago
AIDS is due to
AIDS is due to Options (a) destruction of killer T-cells (b) destruction of helper T- cells (c) lack of interferons…
7 years ago