Q. The branch of Chemistry which deals with hydrocarbons:
(a) Industrial chemistry
(b) Inorganic chemistry
(c) Organic chemistry
(d) Physical chemistry
Answer: c
Q. The atomic mass of an element expressed in gram is:
(a) Gram molecular mass
(b) Gram atomic mass
(c) Gram formula mass
(d) Mole
Answer: b
Q. Which of the following can be separated by physical means?
(a) Mixture
(b) Element
(c) Compound
(d) Substance
Answer: a
Q. The molar mass of H₂SO₄ is:
(a) 98 a.m.u
(b) 9.8gm
(c) 98gm
(d) 9.8 a.m.u
Answer: a
Q. The Molecule consist of two atoms is :
(a) Monoatomic molecule
(b) Polyatomic molecule
(c) Hetero atomic molecule
(d) Di atomic molecule
Answer: d
Q. A formula that indicates actual number and type of atoms in a molecule is called:
(a) Chemical formula
(b) Empirical formula
(c) Molecular formula
(d) Formula mass
Answer: c
Q. Ethyl alcohol was prepared by:
(a) Ibne-Sina
(b) Al-Razi
(c) Al-Beruni
(d) Jaber bin-Hayan
Answer: b
Q. which of the following is Not a homo atomic:
(a) H₂
(b) NH₃
(c) H₂O
(d) CO₂
Answer: b
Q. The Empirical formula of hydrogen peroxide is:
(a) H₂O₂
(b) HO
(c) OH
(d) O₂H₂
Answer: b
Q. A piece of matter in pure form is termed as:
(a) Redical
(b) Mixture
(c) Compound
(d) substance
Answer: d
Q. In an atom number of protons and neutrons are added to obtain:
(a) number of electrons
(b) number of nucleons
(c) atomic number of element
(d) number of isotopes
Answer: b
Q. If proton number is 19, electron configuration will be:
(a) 2, 8, 9
(b) 2, 8, 8, 1
(c) 2, 8, 1
(d) 2, 8, 3
Answer: b
Q. If nucleon number of potassium is 39, number of neutrons will be:
(a) 39
(b) 19
(c) 20
(d) 29
Answer: c
Q. The isotope C-12 is present in abundance of:
(a) 96.9%
(b) 97.6%
(c) 98.8%
(d) 99.7%
Answer: c
Q. Electronic configuration is distribution of:
(a) proton
(b) neutron
(c) electron
(d) positron
Answer: c
Q. Which one of the following is most penetrating?
(a) electron
(b) Proton
(c) alpha particle
(d) neutron
Answer: d
Q. How many subshells in a L shell:
(a) one
(b) two
(c) three
(d) four
Answer: b
Q. De Broglie extend the wave particle duality to electron in:
(a) 1920
(b) 1922
(c) 1923
(d) 1925
Answer: c
Q. Name the material of screen which used in Rutherford atomic model :
(a) Aluminum foil
(b) zinc sulphide
(c) sodium sulphide
(d) Aluminum sulphide
Answer: b
Q. Which rays are used for sterilization of medical instruments :
(a) α - rays
(b) β - rays
(c) γ - rays
(d) x - rays
Answer: c
Q. In 1869 Mandeleev put forward his periodic law about:
(a) Atomic Number
(b) Chemical propertoes
(c) Physical properties
(d) Atomic Mass
Answer: d
Q. The periodic table divided into S, P, d, and f block based on.
(a) Atomic Radius
(b) Electronic Configuration
(c) Ionization Energy
(d) Electron Affinity
Answer: b
Q. 4th and 5th period in periodic table are known as:
(a) Short period
(b) Long period
(c) Normal period
(d) Very long period
Answer: b
Q. Which one of the following decreases along the period?
(a) Ionization Energy
(b) Atomic Radius
(c) Electronegativity
(d) Electron Affinity
Answer: b
Q. The elements of VIIA group are known as:
(a) Lanthanides
(b) Actinides
(c) Halogens
(d) Nobel Gases
Answer: c
Q. According to Mosely the chemical properties of elements are the periodic function of their:
(a) Atomic Size
(b) Atomic Mass
(c) Atomic Radius
(d) Atomic Number
Answer: d
Q. The shielding effect across the period:
(a) Increases
(b) Decrease
(c) Moderate
(d) Same
Answer: d
Q. The ability to attract shared pair of electron is called:
(a) Electron Affinity
(b) Electronegativity
(c) Ionization Energy
(d) Shielding Effect
Answer: b
Q. In group electron affinity values decreases from top to bottom because :
(a) Atomic size normal
(b) Atomic size increases
(c) Atomic size decreases
(d) Atomic size same
Answer: b
Q. All Transition Elements are :
(a) Gases
(b) Metals
(c) Nonmetals
(d) Metalloids
Answer: b
Q. An example of ionic compound is:
(a) H₂
(b) CH₄
(c) N₂
(d) NaCl
Answer: d
Q. Interaction between highly electron deficient hydrogen and highly electronegative atom is called
(a) covalent bond
(b) ionic bond
(c) hydrogen bond
(d) metallic bond
Answer: a
Q. Two fluorine atoms share one electron each in their outermost shell to achieve electronic configuration of:
(a) Xe
(b) Ar
(c) Kr
(d) Ne
Answer: d
Q. Number of electrons lost by atoms of group IIIA equals:
(a) 1
(b) 2
(c) 3
(d) 4
Answer: c
Q. Atom which loses two electrons from its outer shell to for m ion is called:
(a) oxygen
(b) potassium
(c) magnesium
(d) carbon
Answer: c
Q. In NaCl crystal lattice each Na⁺ ion is surrounded by:
(a) 6 Cl⁻ ions
(b) 6 Na⁺ ions
(c) 8 Cl⁻ ions
(d) 12 Cl⁻ ions
Answer: a
Q. At room temperature most of ionic compounds are:
(a) amorphous solids
(b) crystalline solids
(c) liquids
(d) gases
Answer: b
Q. Tendency of atoms to acquire eight electrons in their valence shell is:
(a) octet rule
(b) duplet rule
(c) triplet rule
(d) none of above
Answer: a
Q. When one atom for ms cation by losing electron and other for ms anion by accepting that electron then bond for m between them is:
(a) Covalent bond
(b) Ionic bond
(c) coordinate covalent bond
(d) hydrogen bond
Answer: b
Q. Nobel gases are stable because they contain:
(a) 4 electrons in valence shell
(b) 6 electrons in valence shell
(c) 8 electrons in valence shell
(d) 10 electrons in valence shell
Answer: 8
Q. Bond which involve 3 shared electron pairs is a:
(a) double covalent bond
(b) single covalent bond
(b) triple covalent bond
(d) none of above
Answer: b
Q. A non-metal atom for m anion by
(a) loses of electrons
(b) gain of electrons
(c) loses of protons
(d) gain of protons
Answer: b
Q. When two identical atoms share electron pairs and exert force on each other than bond for m is:
(a) non-polar covalent bond
(b) polar covalent bond
(c) double covalent bond
(d) coordinate covalent bond
Answer: a
Q. Synthetic resins are used on places where:
(a) electric resistance is required
(b) water resistance is required
(c) adhesion is required
(d) friction is required
Answer: b
Q. Oxygen belongs to group VIA so number of electrons in its valence shell are:
(a) 3
(b) 4
(c) 5
(d) 6
Answer: d
Q. Electron pairs which are not shared by atoms are called:
(a) electron pairs
(b) lone pairs
(c) bond pairs
(d) shared pairs
Answer: b
Q. Strength of intermolecular forces from ionic or covalent bond is:
(a) Weaker
(b) stronger
(c) equal
(d) none of above
Answer: a
Q. Ionic crystals have:
(a) high melting points
(b) moderate melting points
(c) low melting points
(d) none of above
Answer: a
Q. Bond for med by mutual sharing of electron is:
(a) ionic bond
(b) coordinate covalent bond
(c) covalent bond
(d) metallic bond
Answer: c
Q. Which of the following gas diffuses fastest?
(a) Hydrogen
(b) Chlorine
(c) Fluorine
(d) Helium
Answer: a
Q. The vapour pressure of a liquid increases with the:
(a) increase of pressure
(b) increase of temperature
(c) increase of intermolecular forces
(d) increase the polarity of molecules
Answer: b
Q. The freezing point depends upon:
(a) Nature of liquid
(b) Pressure
(c) Temperature
(d) Volume
Answer: c
Q. One atmospheric pressure is equal to:
(a) 10325 Pascal
(b) 106075 Pascal
(c) 10523 Pascal
(d) 101325 Pascal
Answer: d
Q. Which of the following does not affect the boiling point:
(a) Inter molecular forces
(b) External pressure
(c) Initial temperature of liquid
(d) Nature of liquid
Answer: c
Q. The mobility of liquids is lesser than:
(a) Solids
(b) Gases
(c) Plasma
(d) Bose Einstein Condensate
Answer: b
Q. Which of the following have sharp melting point in solids:
(a) Plastic
(b) Rubber
(c) Glass
(d) Diamond
Answer: d
Q. Which of the following are lightest form of matter:
(a) Solid
(b) Liquid
(c) Gases
(d) Plasma
Answer: c
Q. The liquid molecules leave the surface of liquid in evaporation process because:
(a) Energy is low
(b) Energy is moderate
(c) Energy is high
(d) None of these
Answer: c
Q.The density of gases increases when its:
(a) Pressure increased
(b) Temperature increased
(c) Volume increased
(d) None of these
Answer: c
Q. An alloy is the homogeneous mixture of:
(a) two solid
(b) two liquid
(c) two gases
(d) solid and liquid
Answer: a
Q. A saturated solution of KCl on heating becomes:
(a) unsaturated
(b) supersaturated
(c) diluted
(d) all of these
Answer: a
Q. If we dissolve sand into the water, then the mixture is said to be:
(a) solution
(b) suspension
(c) colloids
(d) concentrated solution
Answer: b
Q. Solubility is usually expressed in grams of the solute dissolved in ________gram of a solvent
(a) 10 grams
(b) 100 grams
(b) 500 grams
(d) 1000 grams
Answer: b
Q. Example of heterogeneous mixture is:
(a) sugar and water
(b) sand and water
(c) salt and water
(d) ink and water
Answer: b
Q. 2 moles of sodium chloride(NaCl) is equal to:
(a) 123 grams
(b) 135 grams
(c) 158 grams
(d) 117 grams
Answer: d
Q. Molarity of a solution which is prepared by dissolving 40g sodium chloride in 3 500cm of solution is:
(a) 1.4M
(b) 1.5M
(c) 1.33M
(d) 1.35M
Answer: c
Q. 10%(w/w) sugar solution mean that 10 grams of solute dissolved in:
(a) 90g of water
(b) 95g of water
(c) 100g of water
(d) 105g of water
Answer: c
Q. An example of true solution is:
(a) solution of starch
(b) solution of soap
(c) ink in water
(d) tooth paste
Answer: c
Q. Which solution contain more water:
(a) 1.0M
(b) 0.75M
(c) 0.5M
(d) 0.25M
Answer: d
Q. When a saturated solution is diluted, it change into:
(a) saturated solution
(b) unsaturated solution
(c) concentrated solution
(d) supersaturated solution
Answer: b
Q. Butter is example of solution:
(a) gas-liquid
(b) solid-liquid
(c) liquid-solid
(d) gas-solid
Answer: c
Q. A solution that contain solid solute into liquid solvent is called:
(a) solids in gas
(b) liquids in solids
(c) solids in solids
(d) solids in liquid
Answer: d
Q. What is the particle size in suspension?
(a) 10³ nm
(b) 10² nm
(c) less than 10³ nm
(d) greater than 10³ nm
Answer: d
Q. Alloy of Cu - Sn is called
(a) Brass
(b) Bronze
(c) Monel
(d) Bell metal
Answer: b
Q.Which one is Alloy.
(a) Graphite
(b) Mercury
(c) Steel
(d) Water
Answer: c
Q. Value of 1 Farady is equal to ____________.
(a) 9.65 C
(b) 9650 C
(c) 96500 C
(d) 965 C
Answer: c
Q. Which one is non electrolyte.
(a) Aqueous HCI
(b) Aqueous NaCI
(c) Molten KCI
(d) Urea
Answer: d
Q. Which one is oxidizing agent.
(a) Al
(b) H₂S
(c) CI₂
(d) NaH
Answer: c
Q. Which one is reducing agent.
(a) H₂S0₄
(b) HN0₃
(c) Al
(d) l₂
Answer: c
Q. Which one forms weak electrolyte solution with water
(a) HCI
(b) KOH
(c) NaCI
(d) CH₃COOH
Answer: d
Q. In Daniel cell is used as cathode.
(a) Zn
(b) Cu
(c) Sn
(d) Pb
Answer: b
Q. 1g equivalent weight of Al is equal to __________.
(a) 9gm
(b) 27gm
(c) 54gm
(d) 1gm
Answer: a
Q. Which one is correct statement.
(a) oxidation occurs at cathode.
(b) Reduction occurs at anode.
(c) Reduction occurs at cathode.
(d) Lons Lose electron at cathode.
Answer: c
Q. Which one metal belongs to Alkaline earth metal?
(a) B
(b) Bi
(c) Br
(d) Ba
Answer: d
Q. Which one is Barium
(a) Bi
(b) Be
(c) Ba
(d) Br
Answer: c
Q. Chlorine can be displaced by
(a) F
(b) Br
(c) I
(d) At
Answer: a
Q. Which one is strong acid?
(a) HF
(b) HCI
(c) HBr
(d) HI
Answer: b
Q. Which Halogen exists in liquid state?
(a) F₂
(b) Cl₂
(c) Br₂
(d) l₂
Answer: c
Q. Non-metals of ________ group are gases
(a) VI A
(b) VII A
(c) Vlll A
(d) Vlll B
Answer: c
Q. Which one is Metalloid?
(a) Br
(b) Se
(c) S
(d) Sr
Answer: c
Q. Which one of the following act as oxidizing agent?
(a) Be
(b) Mg
(c) Na
(d) Cl
Answer: d
Q. Which gas can turn lime water milky?
(a) O₂
(b) NO₂
(c) CO₂
(d) N₂
Answer: c
Q. Which compound is known as lunar caustic?
(a) KNO₃
(b) AgNO₃
(c) NaOH
(d) NaNO₃
Answer: b
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