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What Would Be the Correct Order If Zn, Fe, Al and Cu Are Arranged in Increasing Order of Reactivity? - Science and Technology 1

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प्रश्न

What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity?

विकल्प

  • Cu, Fe, Zn, Al

  • Al, Cu, Fe, Zn

  • Zn, Al, Cu, Fe

  • Fe, Zn, Al, Cu.

MCQ
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उत्तर

Cu, Fe, Zn, Al

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2018-2019 (March) Balbharati Model Question Paper Set 1

वीडियो ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्न

How does the tendency of elements to gain electrons change as we move from left to right in a period? State the reason of this change.


On which side of the periodic table will you find metals?


Would you place the two isotopes of chlorine, CI-35 and CI-37 in different slots because of their different atomic masses or in the same slot because their chemical properties are the same? Justify your answer.


Which of the following statement is correct in regard to the classification of elements?

(a) Elements in modern periodic table are arranged on the basis of increasing atomic masses.
(b) Elements in Mendeleev's periodic table are arranged on the basis of increasing atomic numbers.
(c) In modern periodic table, the element nickel of lower atomic mass is kept before the element cobalt of higher atomic mass.
(d) In modern periodic table, the isotopes of chlorine having different atomic masses are kept in the same group.


Which of the following statement about the modern periodic table is correct?

(a) It has 18 horizontal rows known as periods.
(b) It has 7 vertical columns known as periods.
(c) It has 18 vertical columns known as groups.
(d) It has 7 horizontal rows known as groups.


The modern periodic table was prepared by ______.


Which element has two shells, both of which are completely filled with electrons?


Which element has the electronic configuration 2, 8, 2?


What is the usual number of valence electrons in the atoms of the last element in a period?


State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.


 Explain why All the elements of a period have different chemical properties.


What is a period in a periodic table?


 What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?


What are the advantages of the periodic table?


Name two elements in Inert gas.


Name two elements in each case: 

Transition element


Name two elements in each case: Lanthanides


Name two elements in each case: 

Actinides


An element barium has the atomic number 56. Look up its position in the periodic table and answer the following question.

Is it larger or smaller than caesium (Cs)?


Name the noble gas with 3 shells.


How many periods and groups are there in the modern periodic table?


Give the symbol and valency of the following element and radical.

Nitrogen [Nitride]


Give the symbol and valency of the following element and radical.

Bisulphite


Give the symbol and valency of the following element and radical.

Sulphate


Give the symbol and valency of the following element and radical.

Sulphite


What are the elements.


Group 1 and 2 : s block : : group 13 and 18 : _______


Complete the following flow chart.


Distinguish between:

s-block - p-block


State any five features of modern periodic table.


Which of the following statements about the Modern Periodic Table is correct:


An element which is an essential constituent of all organic compounds belongs to


Which of the following elements would lose an electron easily?


The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?


______ group elements are called alkaline earth metals.


Explain the position of hydrogen in the periodic table.


Select the appropriate options and complete the following paragraph:

(metals, non-metals, metalloids, four, seven, s-block, p-block, d-block, f-block).

On the basis of electronic configuration, elements in the modern periodic table are classified Into ______ blocks. Groups 1 and 2 elements are included in ______ and all these elements are metals. (except Hydrogen). Group 13 to 18 elements are included in ______. This block contains metals, non-metals and metalloids. Group 3 to 12 elements are included in ______ and all the elements are ______ elements shown at the bottom of the periodic table i.e. Lanthanides and Actinides constitute ______ and all these elements are metals.


An element has 2 electrons in its N shell.

State its position in periodic table.


An element has 2 electrons in its N shell.

Is it a metal or a non-metal?


Answer the following in respect of element \[\ce{_16^32S}\].

To which group and period does it belong?


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