RRB Technician Grade III · 28 Dec 2024 · Shift 2 — General Intelligence & Reasoning
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1 General Intelligence & Reasoning questions from RRB Technician Grade III · 28 Dec 2024 · Shift 2, with answers and Hindi and English explanations.
1.
निम्नलिखित में से कौन-सा युग्म एल्कीनों (alkenes) की सजातीय श्रेणी से संबंधित है?
Which of the following pairs belongs to the homologous series of alkenes?
- (A)C3H6 और C4H8C3H6 and C4H8
- (B)CH4 और C2H4CH4 and C2H4
- (C)CH4 और C4H8CH4 and C4H8
- (D)C2H6 और C3H10C2H6 and C3H10
Show answer and explanation
Answer: (A)
C3H6 और C4H8
C3H6 and C4H8
एल्कीन का सामान्य सूत्र CnH2n है। C3H6 (प्रोपीन) और C4H8 (ब्यूटीन) दोनों इसमें आते हैं और इनमें एक CH2 का अंतर है। CH4 एल्केन है और C3H10 कोई वैध सूत्र नहीं है।
Alkenes have the general formula CnH2n. C3H6 (propene) and C4H8 (butene) both fit this and differ by one CH2 group. CH4 is an alkane, and C3H10 is not a valid formula.
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