You Are On Question Answer Bank SET 2032
101601. Neutron (No charge) was discovered by?
Answer: James Chadwick
101602. Nucleus(+ve charge)was discovered by?
Answer: Ernest Rutherford
101603. Positron (+ve charge) was discovered by?
Answer: Carl Anderson
101604. Antineutron (No charge) was discovered by?
Answer: Bruce Cork
101605. The combining capacity of one atom to another?
101606. Atom is bigger than its nucleus?
Answer: 105 times
101607. Electrons move in a circular path called?
101608. The maximum number of elements in an orbit is?
101609. The orbit followed by a moving electrons around the nucleus of an atom?
101610. The maximum number of electrons in a shell?
Answer: 2n^2 (n = Number of shell)
101611. Smallest particle of a substance having all its properties?
101612. The number of molecules obtained in mole of gas is called 1?
Answer: Avogadro Number
101613. Avagadro Number is?
Answer: 6.023 x 10^23
101614. The term molecule was coined by?
101615. International mole day is on?
Answer: October 23
101616. What is known as the bricks of Universe?
101617. The SI Unit of the amount of substance?
101618. A molecule made up of only\one kind of atom is called?
Answer: Monoatomic molecule
101619. A molecule made up of two kinds of atom is called?
Answer: Diatomic molecule
101620. Substance which is composed of similar I' kind of atoms is called?
101621. The scientist who proved that the elements are made up of atoms?
Answer: John Dalton
101622. The term 'elements' was coined by?
Answer: Robert Boyle
101623. The first scientist who gave a definition to element is?
Answer: Robert Boyle
101624. The scientist who gave symbols for elements on the basis of their names?
Answer: John .J. Berzelius
101625. The scientist who classified elements into Metals and Non-metals is?
101626. Elements are classified into?
Answer: Metals; non-metals and metalloids
101627. Elements that conduct electricity and heat which tends to lose electrons are called?
101628. Elements that do not conduct electricity and heat which tends to accept electrons?
101629. Elements showing properties of both metals and non-metals are?
101630. The international association which gives names of elements?
Answer: International Union of Pure and Applied Chemistry (IUPAC)
101631. The headquarters of IUPAC?
Answer: Zurich (Switzerland)
101632. The most abundant element in the universe?
101633. The second most abundant element in the universe?
101634. The only radio active element in liquid form?
101635. The only radio active element in gaseous form?
101636. The most electro positive stable element?
101637. The combination of two or more elements . is called?
101638. The separation of a compound into its elements by chemical means is called?
101639. The formation of a compound by the union ; of elements is called?
Answer: Synthesis Examples: Water; Steam; Salt etc. .
101640. The recently discovered chemical compound for the treatment of cancer?
101641. The element which forms largest number of compounds?
101642. The second element which forms largest number of compounds?
101643. Two or more substances (elements or compounds or both) that do not combine chemically during the mixing?
101644. The two kinds of mixtures are:?
Answer: Heterogeneous mixture and Homogeneous mixture
101645. A mixture of two faces of the matter is called?
Answer: Colloid Eg : Emulsion; Aerosols; Fog; Mt1k
101646. A colloidal solution formed between two liquids is called?
101647. A colloid formed between gas particles and liquid or solid particles?
101648. Colloid which contains particles of liquid or solid dispersed in gas?
101649. Atoms of the same element having same atomic number and different mass number are known as?
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101650. Isotope was discovered by?
Answer: Frederick Soddy
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