JEE Main 2019 (Online) 12th April Evening Slot | JEE Main Year Wise Previous Years Questions

JEE Main 2019 (Online) 12th April Evening Slot

MCQ (Single Correct Answer)

-1

The INCORRECT match in the following is :

$$\Delta $$G^o = 0, K = 1

$$\Delta $$G^o < 0, K < 1

$$\Delta $$G^o > 0, K < 1

$$\Delta $$G^o < 0, K > 1

JEE Main 2019 (Online) 12th April Evening Slot

MCQ (Single Correct Answer)

-1

25 g of an unknown hydrocarbon upon burning produces 88 g of CO₂ and 9 g of H₂O. This unknown hydrocarbon contains :

18 g of carbon and 7 g of hydrogen

20 g of carbon and 5 g of hydrogen

22 g of carbon and 3 g of hydrogen

24 g of carbon and 1 g of hydrogen

JEE Main 2019 (Online) 12th April Evening Slot

MCQ (Single Correct Answer)

-1

In which one of the following equilibria, K_p $$ \ne $$ K_C ?

2NO(g) ⇋ N₂(g) + O₂(g)

2C(s) + O₂(g) ⇋ 2CO(g)

2HI(g) ⇋ H₂(g) + I₂(g)

NO₂(g) + SO₂(g) ⇋ NO(g) + SO₃(g)

JEE Main 2019 (Online) 12th April Evening Slot

MCQ (Single Correct Answer)

-1

Consider the following reactions :
JEE Main 2019 (Online) 12th April Evening Slot Chemistry - Hydrocarbons Question 128 English

'A' is :

$$CH \equiv CH$$

$$C{H_3} - C \equiv C - C{H_3}$$

$$C{H_3} - C \equiv CH$$

$$C{H_2} = C{H_2}$$

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