Related Questions

Separation of the isotopes of helium for scientific investigations is done by
A Reverse osmosis
B Thermal diffusion
C Leaching
D Solvent extraction
__________ centrifuge is the most suitable for separation of non-friable crystals.
A Tubular bowl
B Disc-bowl
C Perforated horizontal basket continuous
D Suspended batch basket
__________ centrifuge is normally used in sugar mills.
A Tubular bowl
B Disc-bowl
C Suspended batch basket
D Perforated horizontal basket continuous
Iron has got __________ isotopes.
A No
B Four
C Three
D Two
__________ diffusion is used for separating the isotopes of methane.
A Thermal
B Pressure
C Concentration
D Force
Hydrogen has __________ isotopes.
A No
B One
C Two
D Three
Driving force in case of filtration by a centrifuge is the
A Speed of the centrifuge
B Centrifugal pressure exerted by the liquid
C Narrow diameter of the vessel
D Formation of highly porous cake
A typical chromosome has two parts a centrifuge and ________
A Blastomeres
B Chromosomes
C Centrosomes
D Ribosomes
Isotopes-
A আইসোটোপস হইল সই সমস্ত পরমাণু যাহাদের প্রোটন সংখ্যা সমান কিন্তু নিউট্রন সংখ্যা ভিন্ন
B একই মৌলের আইসোটোপস সমূহের ভিন্ন ভিন্ন ভর সংখ্যা থাকে
C একই মৌলের আইসোটোপস সমূহের রাসায়নিক ধর্ম একই রকমের
D সবকটি
Which one is different for the neutral atoms of the isotopes of an element?
A Number of electrons
B Atomic weight
C Atomic number
D Number of Protons

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