WorksheetsChemistry Quiz class 10th
Total questions: 25
Worksheet time: 13mins
Up to which element,law of octaves found to be applicable
Oxygen
Calcium
Cobalt
Potassium
According to Mendeleev periodic law, the elements were arranged in the Periodic table in order of
Increasing atomic number
Decreasing atomic number
Increasing atomic mass
Decreasing atomic mass
In Mendeleev periodic table,gaps were left for the elements to be discovered later. Which of the following elements found a place in the Periodic table later
Germanium
Chlorine
Oxygen
Silicon
On moving from left to right in a period in the Periodic table, the size of atom
Increases
Decreases
Does not change appreciably
First decreases and then increases
Which of the following does not increase while moving down the group of the periodic table?
Atomic radius
Metallic character
Valency
Number of shell in an element
Which one of the following elements do not constitute a Doebereiner's triad ?
Cl,Br, I
Li,Na,K
S,Se,Te
N,P,As
The maximum number of elements in the third period is
(a)
In the second period of periodic table (a) has the largest size.(excluding noble gases Ne)
Which of the following is the outermost shell for elements of period 2 ?
K
L
M
N
How many groups present in modern Periodic table ?
7
18
8
14
Carbon's electronic configuration is
2,2,2
2,4
1,1,4
3,2,1
In covalent bonding electrons are
Shared
Transferred
Donated
Lost
Which of the following are saturated hydrocarbons
Alkanes
Alkenes
Alkynes
All of the above
Name the compound with formula C2H4
Methane
Ethane
Propane
Ethene
The property of self-linkage among identical atoms to form long chain compounds is known
Superposition
Catenation
Isomerisation
Halogenation
Which of the following statements about graphite and diamond is true?
They have the same crystal structure
They have the same degree of hardness
They have the same electrical conductivity
They can undergo the same chemical reactions
Carbon is
divalent
trivalent
tetravalent
pentavalent
How many bonds will a C atom form?
1
2
3
4
Because carbon has 4 valence electrons
it can form up to 4 covalent bonds
it can form ionic bonds
it can form only double bonds
it can form covalent bonds with H only
