A mixture of champhor and benzoic acid can be separated by
Options
(a) chemical method (b) sublimation (c) fractional distillation (d) extraction with a solvent
Correct Answer:
chemical method
Explanation:
No explanation available. […]
The geometry of Ni(CO)₄ and Ni(PPh₃)₂Cl₂ are
Options
(a) both square planar (b) tetrahedral and square planar respectively (c) both tetrahedral (d) square planar and tetrahedral respectively
Correct Answer:
both tetrahedral
Explanation:
No […]
Transition metals show paramagnetism
Options
(a) due to characteristic configuration (b) high lattice energy (c) due to variable oxidation states (d) due to unpaired electrons
Correct Answer:
due to unpaired electrons
Explanation:
No […]
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)O₃
Explanation:
No explanation available. Be the first to write the explanation for this question […]
The ratio of charge and mass would be greatest for
Options
(a) proton (b) electron (c) neutron (d) alpha
Correct Answer:
electron
Explanation:
No explanation available. Be the first to write the explanation […]
Which of the following vitamins is water soluble as well as an anti-oxidant
Options
(a) vitamin B1 (b) vitamin A (c) vitamin D (d) vitamin C
Correct Answer:
vitamin C
Explanation:
No explanation […]
In Pisum sativum there are 14 chromosomes. How many pairs with different chromosomal composition can be prepared?
Options
(a) 14 (b) 7 (c) 2¹⁴ (d) 2⁷
Correct Answer:
7
Explanation:
No explanation available. […]
Human ancestors who left cave paintings were
Options
(a) neanderthal man (b) cro-magnon man (c) java ape man (d) peking man
Correct Answer:
cro-magnon man
Explanation:
Cro-Magnon man are very close relative of modern […]
The biogenetic law of Haeckel is
Options
(a) Omnis vivum-e-vivum (b) Omnis cellula-e-cellula (c) ontogeny repeats phylogeny (d) phylogeny repeats ontogeny
Correct Answer:
ontogeny repeats phylogeny
Explanation:
No explanation available. Be the first […]
AIDS is due to
Options
(a) destruction of killer T-cells (b) destruction of helper T- cells (c) lack of interferons (d) autoimmunity
Correct Answer:
destruction of helper T- cells
Explanation:
No explanation available. […]
2017 Copyright Doctor Dreams Training Academy