QID #24868
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that is gradual deterioration of a material through chemical reactions.
A
Atomic number
B
Isotope
C
Ionic bond
D
Corrosion
Correct Answer: D. Corrosion
Question: Identify the term that is gradual deterioration of a material through chemical reactions.
A. Atomic number
B. Isotope
C. Ionic bond
D. Corrosion
Correct Answer: D. Corrosion
Explanation: Corrosion is gradual deterioration of a material through chemical reactions. The other choices describe different concepts.
QID #24867
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that contains appreciable dissolved calcium or magnesium ions.
A
Compound
B
Mixture
C
Hard water
D
Element
Correct Answer: C. Hard water
Question: Identify the term that contains appreciable dissolved calcium or magnesium ions.
A. Compound
B. Mixture
C. Hard water
D. Element
Correct Answer: C. Hard water
Explanation: Hard water contains appreciable dissolved calcium or magnesium ions. The other choices describe different concepts.
QID #24866
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that is a metallic material containing more than one element.
A
Atom
B
Alloy
C
Hard water
D
Corrosion
Correct Answer: B. Alloy
Question: Identify the term that is a metallic material containing more than one element.
A. Atom
B. Alloy
C. Hard water
D. Corrosion
Correct Answer: B. Alloy
Explanation: Alloy is a metallic material containing more than one element. The other choices describe different concepts.
QID #24865
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that is a macromolecule built from repeating monomer units. Choose the best answer for Test 13.
A
Polymer
B
Catalyst
C
Electrolysis
D
Alloy
Correct Answer: A. Polymer
Question: Identify the term that is a macromolecule built from repeating monomer units. Choose the best answer for Test 13.
A. Polymer
B. Catalyst
C. Electrolysis
D. Alloy
Correct Answer: A. Polymer
Explanation: Polymer is a macromolecule built from repeating monomer units. The other choices describe different concepts.
QID #24864
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that uses electric current to drive a non-spontaneous chemical change. Choose the best answer for Test 13.
A
Neutralization
B
Oxidation
C
Reduction
D
Electrolysis
Correct Answer: D. Electrolysis
Question: Identify the term that uses electric current to drive a non-spontaneous chemical change. Choose the best answer for Test 13.
A. Neutralization
B. Oxidation
C. Reduction
D. Electrolysis
Correct Answer: D. Electrolysis
Explanation: Electrolysis uses electric current to drive a non-spontaneous chemical change. The other choices describe different concepts.
QID #24863
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that changes reaction rate without being consumed overall.
A
Base
B
pH
C
Catalyst
D
Acid
Correct Answer: C. Catalyst
Question: Identify the term that changes reaction rate without being consumed overall.
A. Base
B. pH
C. Catalyst
D. Acid
Correct Answer: C. Catalyst
Explanation: Catalyst changes reaction rate without being consumed overall. The other choices describe different concepts.
QID #24862
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that involves gain of electrons or decrease in oxidation state.
A
Covalent bond
B
Reduction
C
Isotope
D
Ionic bond
Correct Answer: B. Reduction
Question: Identify the term that involves gain of electrons or decrease in oxidation state.
A. Covalent bond
B. Reduction
C. Isotope
D. Ionic bond
Correct Answer: B. Reduction
Explanation: Reduction involves gain of electrons or decrease in oxidation state. The other choices describe different concepts.
QID #24861
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that involves loss of electrons or increase in oxidation state.
A
Oxidation
B
Compound
C
Mixture
D
Atomic number
Correct Answer: A. Oxidation
Question: Identify the term that involves loss of electrons or increase in oxidation state.
A. Oxidation
B. Compound
C. Mixture
D. Atomic number
Correct Answer: A. Oxidation
Explanation: Oxidation involves loss of electrons or increase in oxidation state. The other choices describe different concepts.
QID #24860
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that is reaction of an acid with a base to form salt and water.
A
Corrosion
B
Atom
C
Element
D
Neutralization
Correct Answer: D. Neutralization
Question: Identify the term that is reaction of an acid with a base to form salt and water.
A. Corrosion
B. Atom
C. Element
D. Neutralization
Correct Answer: D. Neutralization
Explanation: Neutralization is reaction of an acid with a base to form salt and water. The other choices describe different concepts.
QID #24859
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that is a logarithmic measure related to hydrogen-ion activity. Choose the best answer for Test 13.
A
Alloy
B
Hard water
C
pH
D
Polymer
Correct Answer: C. pH
Question: Identify the term that is a logarithmic measure related to hydrogen-ion activity. Choose the best answer for Test 13.
A. Alloy
B. Hard water
C. pH
D. Polymer
Correct Answer: C. pH
Explanation: pH is a logarithmic measure related to hydrogen-ion activity. The other choices describe different concepts.
QID #24858
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that accepts protons or increases hydroxide-ion concentration in water.
A
Electrolysis
B
Base
C
Reduction
D
Catalyst
Correct Answer: B. Base
Question: Identify the term that accepts protons or increases hydroxide-ion concentration in water.
A. Electrolysis
B. Base
C. Reduction
D. Catalyst
Correct Answer: B. Base
Explanation: Base accepts protons or increases hydroxide-ion concentration in water. The other choices describe different concepts.
QID #24857
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that donates protons or increases hydrogen-ion concentration in water.
A
Acid
B
pH
C
Neutralization
D
Oxidation
Correct Answer: A. Acid
Question: Identify the term that donates protons or increases hydrogen-ion concentration in water.
A. Acid
B. pH
C. Neutralization
D. Oxidation
Correct Answer: A. Acid
Explanation: Acid donates protons or increases hydrogen-ion concentration in water. The other choices describe different concepts.
QID #24856
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that involves sharing of electron pairs between atoms.
A
Ionic bond
B
Acid
C
Base
D
Covalent bond
Correct Answer: D. Covalent bond
Question: Identify the term that involves sharing of electron pairs between atoms.
A. Ionic bond
B. Acid
C. Base
D. Covalent bond
Correct Answer: D. Covalent bond
Explanation: Covalent bond involves sharing of electron pairs between atoms. The other choices describe different concepts.
QID #24855
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that forms through electrostatic attraction between oppositely charged ions.
A
Atomic number
B
Isotope
C
Ionic bond
D
Mixture
Correct Answer: C. Ionic bond
Question: Identify the term that forms through electrostatic attraction between oppositely charged ions.
A. Atomic number
B. Isotope
C. Ionic bond
D. Mixture
Correct Answer: C. Ionic bond
Explanation: Ionic bond forms through electrostatic attraction between oppositely charged ions. The other choices describe different concepts.
QID #24854
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that has the same proton number but a different neutron number.
A
Compound
B
Isotope
C
Atom
D
Element
Correct Answer: B. Isotope
Question: Identify the term that has the same proton number but a different neutron number.
A. Compound
B. Isotope
C. Atom
D. Element
Correct Answer: B. Isotope
Explanation: Isotope has the same proton number but a different neutron number. The other choices describe different concepts.
QID #24853
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that equals the number of protons in an atomic nucleus.
A
Atomic number
B
Alloy
C
Hard water
D
Corrosion
Correct Answer: A. Atomic number
Question: Identify the term that equals the number of protons in an atomic nucleus.
A. Atomic number
B. Alloy
C. Hard water
D. Corrosion
Correct Answer: A. Atomic number
Explanation: Atomic number equals the number of protons in an atomic nucleus. The other choices describe different concepts.
QID #24852
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that contains substances physically combined in variable proportions.
A
Catalyst
B
Electrolysis
C
Polymer
D
Mixture
Correct Answer: D. Mixture
Question: Identify the term that contains substances physically combined in variable proportions.
A. Catalyst
B. Electrolysis
C. Polymer
D. Mixture
Correct Answer: D. Mixture
Explanation: Mixture contains substances physically combined in variable proportions. The other choices describe different concepts.
QID #24851
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that contains elements chemically combined in fixed proportions.
A
Oxidation
B
Reduction
C
Compound
D
Neutralization
Correct Answer: C. Compound
Question: Identify the term that contains elements chemically combined in fixed proportions.
A. Oxidation
B. Reduction
C. Compound
D. Neutralization
Correct Answer: C. Compound
Explanation: Compound contains elements chemically combined in fixed proportions. The other choices describe different concepts.
QID #24850
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that contains atoms with the same atomic number.
A
pH
B
Element
C
Acid
D
Base
Correct Answer: B. Element
Question: Identify the term that contains atoms with the same atomic number.
A. pH
B. Element
C. Acid
D. Base
Correct Answer: B. Element
Explanation: Element contains atoms with the same atomic number. The other choices describe different concepts.
QID #24849
AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series Bilingual General Science Chemistry Easy
Identify the term that is the smallest unit retaining the chemical identity of an element.
A
Atom
B
Isotope
C
Ionic bond
D
Covalent bond
Correct Answer: A. Atom
Question: Identify the term that is the smallest unit retaining the chemical identity of an element.
A. Atom
B. Isotope
C. Ionic bond
D. Covalent bond
Correct Answer: A. Atom
Explanation: Atom is the smallest unit retaining the chemical identity of an element. The other choices describe different concepts.
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