All MCQs - JEST Past Papers Practice | PakExamPoint
Practise All MCQs in JEST Past Papers. Attempt multiple-choice questions, check answers and revise related subtopics.
All MCQs and revision practice
Study All through multiple-choice questions in JEST Past Papers. This subtopic contains 992 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these All MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
کون سا ڈایاگرام دھات کے سوڈیم کی ساخت کی نمائندگی کرتا ہے؟
A. None of these
B. Randomly arranged atoms without any free electrons
C. Molecules held together by shared pairs of electrons
D. A regular arrangement of positive ions surrounded by a sea of delocalized electrons
Check answer and explanation
Answer: A regular arrangement of positive ions surrounded by a sea of delocalized electrons
Explanation Sodium is a metal, and metallic bonding involves positive ions in a lattice surrounded by a sea of free (delocalized) electrons. This structure gives metals properties like electrical conductivity and malleability.
لمبی بینائی کی اصلاح کے لیے کون سا لینس استعمال کیا جاتا ہے؟
A. Concave lens
B. Conpave lens
C. Compact lens
D. Convex lens
Check answer and explanation
Answer: Convex lens
Explanation A convex lens has either one or both of its surfaces curving outwards , that is, wider divergence from the plan at the center. These lenses are used to correct long-sightedness (hypermetropia).
Explanation Light varies continuously in intensity and wavelength, making it an analog signal . Analog signals have values that change smoothly over time — just like natural light.
مندرجہ ذیل میں سے کون سا غیر جانبدار نمک کی مثال ہے؟
A. CH₃COONa
B. Na₂CO₃
C. NH₄Cl
D. NaCl
Check answer and explanation
Answer: NaCl
Explanation A neutral salt is formed when a strong acid reacts with a strong base. It does not show acidic or basic nature in water. Its pH is approximately 7 . It contains equal strength of acid and base ions. Example of neutral salt is NaCl (Sodium Chloride). Last verified on 11-04-2026
Explanation The Recycle Bin temporarily stores deleted files and folders from your computer. You can restore them if needed or permanently delete them from there.
کنجوگیٹ انزائم کے غیر پروٹین حصے کو اگر وہ کمزور (ڈھیلے سے) طور پر جڑا ہو تو اسے کیا کہتے ہیں؟
A. Co-factor
B. Prosthetic Group
C. Holoenzyme
D. Co-enzyme
Check answer and explanation
Answer: Co-factor
Explanation Enzymes sometimes need a non-protein component to function properly. This non-protein part is called a cofactor . If it is loosely attached, it can easily separate from the enzyme. Cofactors help enzymes carry out biochemical reactions. They may be inorganic ions or organic molecules. Last verified on 10-04-2026
مندرجہ ذیل میں سے کون سی مہارت مواد کو پیش کرنے کی صلاحیت سے متعلق ہے؟
A. Reinforcement skill
B. None of these
C. Blackboard writing skill
D. Explanation skill
Check answer and explanation
Answer: Explanation skill
Explanation The skill related to presenting content is Explanation skill . It involves clearly delivering and clarifying subject matter to students. Additional information : Blackboard writing skill – writing clearly on board Reinforcement skill – encouraging correct responses Questioning skill – asking purposeful questions Demonstration skill – showing practical processes Last verified on 13-04-2026
Explanation This is the sentence of present indefinite tense. Present Indefinite Tense Active Voice: Subject + Verb + Object Passive Voice: Object + is/am/are+ third form of a verb + by + subject.
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