NEET MCQ for Chemistry 10

NEET MCQ for Chemistry 10

Q.1.Vinegar is a solution of
A) 30% – 40% acetic acid in alcohol
B) 5%-8% acetic acid in alcohol
C) 5% -8% acetic acid in water
D) 15% – 20% acetic acid in water

Q.2.Rusting of iron takes place in
A) Ordinary water
B) Distilled water
C) Both ordinary & distilled water
D) None

Q.3.Lime Water is
A) Cao
B) Ca (OH)2
C) CaCO3
D) CaCl2

Q.4.The correct order of the packing efficiency in different types of unit cells is
A) fcc<bcc <simple cubic
B) fcc> bcc > simple cubic
C) fcc< bcc > simple cubic
D) bcc <fcc> simple cubic

Q.5.Number of moles present in 28g of nitrogen atoms are
A) 1 mole
B) 2 moles
C) 0.5 mole
D) 3 moles

Q.6.Aldol condensation is the reaction of
A) acetaldehyde and KOH
B) Formaldehyde and 10% NaOH
C) Formaldehyde and HCN
D) Acetone and chloroform

Q.7.Which of the following substances is not an electrolyte?
A) Common salt
B) Sulphuric Acid
C) Glucose
D) Acetic Acid

Q.8.In which of the following Mercury is a constituent?
A) Cinnabar
B) Chile saltpeter
C) Calamine
D) Gold

Q.9.Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?
A) CaSO4
B) BeSO4
C) BaSO4
D) SrO4

Q.10.The luster of a metal is due to
A) Its high density
B) Its high polishing
C) Its chemical inertness
D) Presence of free electrons

Q.11.The carbonate ores are changed into oxides by heating strongly in limited air. This process is known as â€
A) Roasting
B) Calcination
C) Detoxification
D) Corrosion

Q.12.Non-metals form oxides which are:
A) Either acidic or neutral
B) Acidic only
C) Basic only
D) Neither acidic nor neutral

Q.13.Which is strongly acidic (0) on pH scale among the following?
A) Stomach acid
B) Battery acid
C) Lemon juice
D) Vinegar

Q.14.Calcium Magnesium Silicate is commonly called as______?
A) Asbestos
B) Borax
C) Baking Soda
D) Washing Soda

Q.15.Which one of the following is the softest?
A) Sodium
B) Iron
C) Aluminum
D) lithium

Q.16.Which of the following gas is used in cigarette lighters?
A) Butane
B) Propane
C) Methane
D) Ethane

Q.17.Unreactive non metals are called________
A) Alkanes
B) Alkali metals
C) Polymers
D) Noble gases

Q.18.Zone refining is used for the purification of
A) Au
B) Ge
C) Ag
D) Cu

Q.19.The process of purifying water by spraying water on to a bed of stones where microorganism live so that the microorganisms feed on the pathogens in water and make the water free from harmful pathogens is called?
A) Stone bed method
B) Biofilter method
C) Aerobic filtration
D) Anerobic filtration

Q.20.Duralumin which is used in making aero planes is an alloy consisting of____?
A) Aluminum & Copper
B) Aluminum, Copper & Manganese
C) Aluminum, Copper, Manganese & Magnesium
D) Aluminum and zinc

Q.21.The primary part of Liquefied Petroleum Gas LPG is____?
A) Butance
B) Methane
C) Propane
D) Ethane

Q.22.Charles Goodyear is known for which of the following?
A) Experiments on Rubber Plants
B) Vulcanization of Rubber
C) Invention of Radial Tyres
D) Invention of Artificial Rubber

Q.23.Which among the following is incorrect regarding the chemical nature of Diamond & Graphite?
A) Density of Diamond is higher than that of Graphite
B) Diamond is chemically unreactive while graphite is mild reactive
C) Both Diamond and Graphite are good conductors of electricity
D) None of the above

Q.24.Cobalt oxide is used to impart which color to glass?
A) Brown
B) Blue
C) Red
D) Yellow

Q.25.Graphite, Carbon and Diamonds are_______?
A) Isotopes
B) Isomers
C) Isotones
D) Allotropes

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