CHM101 e-exam (2019)

Question FBQ1 : ___ is a group 2 metal that is not counted as an alkaline earth metal since its oxide is not alkaline
Answer: Beryllium
Question FBQ2 : Group 2A elements are called alkaline earth metals because they react with oxygen to form _______
Answer: Oxides
Question FBQ3 : Alkaline earth metals have ______ valence electrons
Answer: Two
Question FBQ4 : Alkaline earth metals from ions with a ______ charge
Answer: +2
Question FBQ5 : The polarizing power of a cation is ________ proportional to its size
Answer: inversely
Question FBQ6 : Group 1 metals are known as ______
Answer: alkaline metals
Question FBQ7 : Group 2 elements are also known as _______ earth metals
Answer: alkaline
Question FBQ8 : John Newlands, an English chemist reported his law of _________
Answer: Octaves
Question FBQ9 : If elements are arranged sequentially in order of increasing __________, a periodic repetition, that is, periodicity in properties is observed
Answer: Atomic weight
Question FBQ10 : The modern periodic law states that the properties of elements are ______ functions of their atomic numbers
Answer: periodic
Question FBQ11 : The systematic name for the element with atomic number of 105 is called ______
Answer: Unnilpentium
Question FBQ13 : According to _________, no two electrons in the same atom can have the same value of n, l and mi.
Answer: Exclusion principle
Question FBQ14 : According to _____ rule, every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin
Answer: Hunds
Question FBQ15 : Elements in the same period have same number of _______
Answer: Shell
Question FBQ16 : Elements in the same group have the same number of ________
Answer: Valence electrons
Question FBQ17 : The electronic configuration of an atom with atomic number 9 is given as ______
Answer: 1s2 2s2 2p5
Question FBQ18 : The ionic radii of metallic cations are ____ than the atomic radii
Answer: Smaller
Question FBQ19 : The ionic radii of non-metallic anion are ____ than the atomic radii
Answer: Bigger
Question FBQ20 : Electron affinity _______ across the period
Answer: Increases
Question FBQ21 : Complete the following reaction Na2C2 + 2H2O → 2NaOH + ___
Answer: C2H2
Question FBQ22 : When Li2CO3 is decomposed under heat it gives ____ and CO2
Answer: Li2O
Question FBQ23 : KO2 is an example of a ____ oxide
Answer: Super
Question FBQ24 : When a metal is surrounded by solvent molecules, the phenomenon is called ______
Answer: Solvation
Question FBQ25 : Electrons associated with the solvent are known as ______ electrons
Answer: Solvated
Question FBQ26 : ________ is an alkaline earth metals useful in the formation of bones and teeth
Answer: Magnesium
Question FBQ27 : Complete the following reaction; Ca(OH)2 + CO2 â†’ ____ + H2O
Answer: CaCO3
Question FBQ28 : All group 2 elements except ___ form hydrides
Answer: Beryllium
Question FBQ29 : Complex formation is favoured by ____, highly charged cations with suitable empty orbitals of approximately the right energy with which the ligand orbitals can combine
Answer: Small
Question FBQ30 : In chlorophyll ____ is coordinated to four nitrogen atoms in the heterocyclic porphyrin ring system
Answer: Magnesium
Question FBQ31 : The hydrated ionic radii of alkali metal ions _____ down the group
Answer: Decreases
Question FBQ32 : The tendency to form complexes ______ with increasing atomic number in alkali earth metals
Answer: Decreases
Question FBQ33 : The density of alkali earth metals shrinks from beryllium to calcium, but ____ considerably thereafter up to radium
Answer: Increases
Question FBQ12 : The systematic name for the element with atomic number 102 is called ______
Answer: Unilbium
Question FBQ34 : ____ is a metallic cation that is isoelectronic to Al3+
Answer: Mg2+
Question FBQ35 : Potassium (19K) has an effective Z value of ___
Answer: 2.20
Question MCQ1 : Alkaline earth metals form ions with a ______ charge
Answer: +2
Question MCQ2 : Which element is not an alkaline earth metals?
Answer: zirconium
Question MCQ3 : The classification of certain groups of three elements into TRIADS was done by?
Answer: Dobereiner
Question MCQ4 : Classification of elements according to increasing atomic weight on a line which spiraled around a cylinder from the bottom to top was done by ?
Answer: De chancourtois
Question MCQ5 : The Law of octaves was put forward by?
Answer: Newlands
Question MCQ6 : Arranging elements in increasing atomic weight leading to a periodicity in their properties was done by
Answer: Mendeleev
Question MCQ7 : Both elements of the 1st period contains valence electrons in
Answer: K shell
Question MCQ8 : In periodic table, helium is placed at
Answer: top right corner
Question MCQ9 : On the basis of electronic configuration group and period an element with atomic number of 5 is
Answer: 2 and IIIA
Question MCQ10 : Chemical properties depends upon
Answer: valence shell electronic configuration
Question MCQ11 : Nobel gases are present in
Answer: VIIIA group
Question MCQ12 : Energy required to remove an electron from the outermost shell is called
Answer: ionization energy
Question MCQ13 : As we go from top to bottom in a group shielding effect
Answer: Increases
Question MCQ14 : Group A elements are called
Answer: transition elements
Question MCQ15 : Period number of element indicates
Answer: value of valence shell
Question MCQ16 : Ability of atom to attract electrons towards itself is called
Answer: Electronegativity
Question MCQ17 : Average distance between nucleus and outer shell is called
Answer: atomic size
Question MCQ18 : Groups containing alkaline earth metals are
Answer: IIA
Question MCQ19 : Physical properties depends on the
Answer: size of atom
Question MCQ20 : Elements that lie in same column have
Answer: similar properties
Question MCQ21 : As we go from left to right across period, electron affinity
Answer: Increases
Question MCQ22 : Elements are arranged in order of
Answer: increasing atomic number
Question MCQ23 : Decrease in force of attraction between valence electrons and nucleus by innver electrons is called
Answer: shielding effect
Question MCQ24 : 14 elements after actinium is called
Answer: Actinides
Question MCQ25 : an element that has an atomic number of 15 with which of the following elements will it show similar chemical properties
Answer: N (7)
Question MCQ26 : The group number and period number respectively of an element with atomic number 8 is
Answer: 6, 2
Question MCQ27 : Identify the wrong sequence of elements in a group
Answer: Cu, Au, Ag
Question MCQ28 : An element with atomic number ______ will form a basic oxide
Answer: 11
Question MCQ29 : What principle/rule is violated in the configuration 1s2 2s3
Answer: Pauli’s exclusion principle
Question MCQ30 : What principle/ rule is violated in the configuration 1s2 2s2 2px2 2py1
Answer: Hund’s rule
Question MCQ31 : What principle/ rule is violated in the electronic configuration 1s2 2px2
Answer: Aufbau’s principle
Question MCQ32 : What type of bonding is found in Ammonia molecule
Answer: Covalent
Question MCQ33 : The polarizing power of a cation is _________ proportional to its size
Answer: Inversely
Question MCQ34 : Na3AlF6 is known as
Answer: Cryolite
Question MCQ35 : When a metal is surrounded by solvent molecules, the phenomenon is called
Answer: Solvation

Leave a Reply

MEET OVER 2000 NOUN STUDENTS HERE. 

Join us for latest NOUN UPDATES and Free TMA answers posted by students on our Telegram. 

OUR ONLINE TUTORIAL CLASS IS NOW ON!!! JOIN US NOW. 
JOIN NOW!
close-link
%d bloggers like this: