Chemistry
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CY 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 61–63 of 65. Imported answers require review unless explicitly marked reviewed.
Question 51
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The spacing between the two adjacent lines of the microwave spectrum of H³⁵Cl is 6.35 × 10¹¹ Hz. Given that the bond length of D³⁵Cl is 5% greater than that of H³⁵Cl, the corresponding spacing for D³⁵Cl is ______ × 10¹¹ Hz. (Up to two decimal places)
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For a diatomic vibrating rotor, in vibrational level
and rotational level J, the sum of the rotational and vibrational energies is 11493.6 cm⁻¹. Its equilibrium oscillation frequency is 2998.3 cm⁻¹, anharmonicity constant is 0.0124 and rotational constant under rigid rotor approximation is 9.716 cm⁻¹. The value of J is ____________. (Up to nearest integer)Log in to check the answer
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Number of carbonyl groups present in the final product of the following reaction sequence is __________.

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