Effective volume is usually taken for ____________ ?
A. 2 moles of gas
B. 1 mole of gas
C. 5 moles of gas
D. 3moles of gas
Chemistry Mcqs
Process used to separate insoluble particles from liquids is ___________ ?
Process used to separate insoluble particles from liquids is ___________ ?
A. Drying
B. Filtration
C. Sieving
D. Extraction
Column of manometer which faces liquid is __________ ?
Column of manometer which faces liquid is __________ ?
A. Raised
B. Depressed
C. Compressed
D. Remains same
Quantum numbers are __________ ?
Quantum numbers are __________ ?
A. Arithmetical values
B. Numerical values
C. Leometric values
D. Logical values
Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?
Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?
A. 75.2pm
B. 75.3pm
C. 75.5pm
D. 75.4pm
In a group, atomic radii increase due to successive increase of _________ ?
In a group, atomic radii increase due to successive increase of _________ ?
A. Electronic shells
B. Proton shells
C. Neutron shells
D. Nucleus
Chromatography is used to separate _________ ?
Chromatography is used to separate _________ ?
A. Solution
B. Mixtures
C. Molecules
D. Atoms
In SI base units, 1 Bq is equal to __________ ?
In SI base units, 1 Bq is equal to __________ ?
A. 10 disintegration per second
B. 1.5 disintegration per second
C. 0.01 disintegration per second
D. 1 disintegration per second
A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?
A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?
A. Beta particle
B. Gamma particle
C. Alpha particle
D. Negative particle
Elements which emit natural radioactivity are known as __________ ?
Elements which emit natural radioactivity are known as __________ ?
A. Radio elements
B. Active elements
C. Radioactive elements
D. Nuclear elements