NCERT Solutions for Class 12 Chemistry (Rasayan Vigyan) - Test 2
Download NCERT Solutions for Class 12 Chemistry (Rasayan Vigyan) updated for 2022-23. Our solutions cover key chapters like Surface Chemistry, Solid State, and other essential topics in chemistry. These study materials are designed to help students excel in their UP Board and CBSE exams.
Que 21: निम्नलिखित में सबसे कम भाष्णिक है।
[A] NCl3
[B] NBr3
[C] NI3
[D] NF3
Show Answer
Correct Answer :
[C] NI3
Que 22: H2SO4 है –
[A] अम्ल
[B] भष्म
[C] क्षार
[D] लवण
Show Answer
Correct Answer :
[A] अम्ल
Que 23: बिस्मथ की सबसे स्थाई ऑक्सीकरण अवस्था है-
[A] +3
[B] +5
[C] +3 और +5 दोनों
[D] कोई नहीं
Show Answer
Correct Answer :
[A] +3
Que 24: जिंक सल्फाइड (ZnS) का रंग है
[A] श्वेत
[B] काला
[C] भूरा
[D] लाल
Show Answer
Correct Answer :
[A] श्वेत
Que 25: स्मेल्टींग में धातु के ऑक्साइड के अपचयन में संयुक्त है-
[A] A1
[B] C
[C] Mg
[D] CO
Show Answer
Correct Answer :
[B] C
Que 26: निम्नलिखित में कौन-सी संक्रमण धातु अधिकतम ऑक्सीकरण अवस्था दर्शाती है?
[A] Fe
[B] Mn
[C] V
[D] Cr
Show Answer
Correct Answer :
[B] Mn
Que 27: निकेल का [Ni(CO)4] में ऑक्सीकरण अवस्था होती है
[A] 4
[B] 0
[C] 2
[D] 3
Show Answer
Correct Answer :
[B] 0
Que 28: फूल्स गोल्ड किसे कहते हैं ?
[A] As2S3
[B] Sb2S5
[C] Fes2
[D] Cu-Zn मिश्रधातु
Show Answer
Correct Answer :
[C] Fes2
Que 29: C2 अणु में σ और π बन्धन की संख्या है
[A] 1σ और 1π
[B] 1σ और 2π
[C] सिर्फ 2π
[D] 1σ और 3π
Show Answer
Correct Answer :
[C] सिर्फ 2π
Que 30: निम्न में से कौन-सा सबसे प्रबल ऑक्सीकारक पदार्थ है
[A] F2
[B] Cl2
[C] Br2
[D] I2
Show Answer
Correct Answer :
[A] F2
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