331. 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

332. 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

333. Chromatography is used to separate _________ ?
A. Solution
B. Mixtures
C. Molecules
D. Atoms

334. In a group, atomic radii increase due to successive increase of _________ ?
A. Electronic shells
B. Proton shells
C. Neutron shells
D. Nucleus

335. Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?
A. 75.2pm
B. 75.3pm
C. 75.5pm
D. 75.4pm

336. Quantum numbers are __________ ?
A. Arithmetical values
B. Numerical values
C. Leometric values
D. Logical values

337. Column of manometer which faces liquid is __________ ?
A. Raised
B. Depressed
C. Compressed
D. Remains same

338. Process used to separate insoluble particles from liquids is ___________ ?
A. Drying
B. Filtration
C. Sieving
D. Extraction

339. 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

340. In whole Periodic Table which element Is Most Reducing Agent ?
A. Chlorine
B. lithium
C. Helium
D. Neon