मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

The molecular formula of the chloride of an element X is XCl. This compound is a solid having a high melting point. Which of the following elements be present in the same group as X.

Advertisements
Advertisements

प्रश्न

The molecular formula of the chloride of element X is XCl. This compound is a solid having a high melting point. Which of the following elements be present in the same group as X.

पर्याय

  • Na

  • Mg

  • Al

  • Si

MCQ
Advertisements

उत्तर

Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. An element to be present in the same group as X is Na.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Periodic Classification of Element - Exercise [पृष्ठ २८]

APPEARS IN

बालभारती Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
पाठ 2 Periodic Classification of Element
Exercise | Q 2. c. | पृष्ठ २८

संबंधित प्रश्‍न

Rewrite the following statement after correction, if necessary:

Groups have elements with consecutive atomic numbers.


Rewrite the following statement after correction, if necessary:

Periods are the horizontal rows of elements.


Rewrite the following statement after correction, if necessary:

 Isotopes are the elements of the same group.


The element which forms a basis oxide has the atomic number of:

(a) 18
(b) 17
(c) 14
(d) 19


An element A from group 14 of the periodic table combines with an element B from group 16.

(i) What type of chemical bond is formed?
(ii) Give the formula of the compound formed.


An element X from group 2 of the periodic table reacts with an element Y from group 17 to form a compound.

(a) What is the nature of the compound formed?
(b) State whether the compound formed will conduct electricity or not.
(c) Give the formula of the compound formed.
(d) What is the valency of element X?
(e) How many electrons are there in the outermost shell of an atom of element Y?


The elements Li, Na and K, each having one valence electron, are in period 2, 3 and 4 respectively of modern periodic table.

(i) In which group of the periodic table should they be ?

(ii) Which one of them is least reactive ?

(iii) Which one of them has the largest atomic radius ? Give reason in justify your answer in each case.


Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ______.


What is the need for classification of elements?


Write the name.

The atom having smallest atomic radius from group 1.


The basis of the classifications proposed by Dobereiner, Newlands and Mendeleev was ______.


______ group contains the member of the halogen family.


Moseley’s periodic table is based on atomic mass.


Identify the bond between H and F in the HF molecules.


An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting. Write the formula of the compound formed when X reacts with chlorine.


Which one of the following statements is not correct about the trends in the properties of the elements of a group on going down in a group?


An element with the atomic number 40 is placed in the period.  


The element with atomic number 26 will be found in group ______ 


Complete the following triads by inserting the missing elements.

Cl, ______, I


Element 'X' forms an oxide with the formula X2O3 which is a solid with high melting point. ‘X’ would most likely be placed in the group of the Periodic Table as:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×