Statement-1: Oxyhydrogen flame produces higher temperature then oxy atomic hydrogen flame.
Statement-2: The heat generated during burning of these gases in oxygen is used to melt substances.

Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1

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Statement-1 is True, Statement-2 is True; Statement-2 is not a correct explanation for Statement-1

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Statement-1 is true, Statement-2 is false

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Statement-1 is false, Statement-2 is true

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Solution

The correct option is D Statement-1 is false, Statement-2 is true
Oxyhydrogen flame produces lower temperature then oxy-atomic hydrogen flame.
The heat generated during burning of these gases in oxygen is used to melt substances.

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Similar questions

- 1 :

0 < x < y \Rightarrow {log}_{a} x > {log}_{a} y

a > 1

- 2 :

a > 1, {log}_{a} x

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} = (n + 2) 2^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} x^{r} = (1 + x)^{n} + n x (1 + x)^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} = (n + 2) 2^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} x^{r} = (1 + x)^{n} + n x (1 + x)^{n - 1} .

N H_{3}

P H_{3}

N H_{3}

n \geq 2,

\frac{1}{\sqrt{1}} + \frac{1}{\sqrt{2}} + . . . + \frac{1}{\sqrt{n}} > \sqrt{n}

\sqrt{n (n + 1)} < n + 1

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