بلیک فاریسٹ کس ملک میں واقع ہے؟
A. Germany
B. France
C. China
D. Britain
Explanation
The Black Forest (Schwarzwald) is a mountainous region in southwestern Germany . This is known for its dense forests and scenic beauty. It is famous for cuckoo clocks, spa towns , and being the inspiration for many fairy tales. Show/Hide Explanation
افقی محوروں پر دو یکساں دائرے محو ہیں جو ان کی سطحوں پر ٹینجینٹ ہیں۔ ایک طویل مدت کے ساتھ ایک ہے جس میں _______ ہے؟
A. The larger rotational inertia
B. The larger radius
C. None of these
D. The smaller mass
Explanation
The period of a physical pendulum depends on the rotational inertia and the distance from the pivot. A larger radius increases the moment of inertia, leading to a longer period of oscillation. Show/Hide Explanation
لینز کا قانون _____ کی وضاحت کرسکتا ہے؟
A. None of these
B. Ferromagnetism only
C. Only two of the three types of magnetism
D. Diamagnetism only
Explanation
Lenz's Law states that an induced current opposes the change in magnetic flux , which aligns with diamagnetism , where materials create an opposing magnetic field. Paramagnetic and ferromagnetic materials align with the external field , not opposing it , so Lenz's Law does not explain them. Show/Hide Explanation
A. 11%
B. None of these
C. 8%
D. 7%
Explanation
Uncertainty propagation in multiplication/division follows the rule:Δ P P = 2 × Δ V V + Δ R R Given uncertainty in V = e% and uncertainty in R = 2% , Total uncertainty = 2 ( e ) + 2 = 8 % text{Total uncertainty} = 2(e) + 2 = 8% (assuming e = 3%)
Show/Hide Explanation
A. Off
B. None of these
C. Out
D. Away
Explanation
" Walked out " means leaving a place , especially in disappointment or protest . In this context, " walked out before it ended " correctly conveys leaving the movie early due to boredom. Show/Hide Explanation
A. None of these
B. Carbonyl group
C. Benzene ring
D. Hydroxyl group
Explanation
Phenols contain a hydroxyl (-OH) group attached to a benzene ring . They do not have a carbonyl group (C=O) , which is found in aldehydes , ketones, and carboxylic acids. Show/Hide Explanation
ارین بنیادی طور پر _____ سے گزرتا ہے؟
A. Elimination
B. None of these
C. Addition
D. Substitution
Explanation
Arenes (aromatic compounds) predominantly undergo electrophilic substitution reactions. This is because addition reactions would disrupt the stable aromaticity of the benzene ring. Show/Hide Explanation
A. IDLER : LAZY
B. ACTION : VERBAL
C. TEACHER : RICH
D. None of these
Explanation
A Zealot is someone who is extremely enthusiastic . Similarly, an Idler is someone who is lazy . The relationship is between a person and their defining characteristic. Show/Hide Explanation
مندرجہ ذیل میں سے کون گیس کرومیٹوگرافی کا پتہ لگانے والا نہیں ہوسکتا؟
A. DAD
B. FID
C. TCD
D. None of these
Explanation
DAD (Diode Array Detector) is used in liquid chromatography (HPLC), not gas chromatography. FID (Flame Ionization Detector), TCD (Thermal Conductivity Detector), and MS (Mass Spectrometry) are all common GC detectors. Show/Hide Explanation
A. Parole
B. None of these
C. Jargon
D. Pidgin
Explanation
Pidgin is a simplified language that develops between groups who do not share a common language, often for trade or communication. It has limited vocabulary and grammar , usually borrowing from multiple languages without native speakers. Show/Hide Explanation
