The molecules of CO2 in dry ice form__________________?
A. Ionic crystal
B. Covalent crystal
C. Molecular crystal
D. Any type of crystal
Chemistry Mcqs
Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?
Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?
A. one / seventeen
B. sixteen / seventeen
C. one / three
D. two / three
A method of separation of components from its solution using Distribution law is ___________________?
A method of separation of components from its solution using Distribution law is ___________________?
A. Sublimation
B. Crystallisation
C. Solvent extraction
D. Distillation
The type of filtering media used for filtration depending upon____________________?
The type of filtering media used for filtration depending upon____________________?
A. Nature of reactants
B. Nature of crucible
C. Nature of product
D. Nature of precipitate
Water absorber used in combustion analysis is___________________?
Water absorber used in combustion analysis is___________________?
A. 50% KOH
B. Lime water
C. CaCl2
D. Mg (CIO4)2
Which of the following set has all species isoelectronic__________________?
Which of the following set has all species isoelectronic__________________?
A. F – Cl – Br
B. Li+1 – Na+1 – K+1
C. F – Ne – Na+
D. H+ – H- – H
The volume occupied by 1.4g CO at S.T.P is___________________?
The volume occupied by 1.4g CO at S.T.P is___________________?
A. 22.4 dm3
B. 2.24 dm3
C. 1.12 cm3
D. 1.12 dm3
Isotopes differs in______________________?
Isotopes differs in______________________?
A. arrangement of electrons in orbitals
B. position in the periodic table
C. properties depend upon mass
D. chemical properties
The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?
The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?
A. Ethylene iodide
B. Ethylene bromide
C. Ethylene chloride
D. Ethylene fluoride
Which of the following elements conduct electricity and also melts below 100°C ?
Which of the following elements conduct electricity and also melts below 100°C ?
A. Aluminium
B. Sodium
C. Carbon
D. Sulphur