An element X reacts with `H_(2)` gas at `200^(@)C` to form compound Y. when Y is heated to a higher temperature, it decomposes to element X and `H_(2)

Monjur Alahi

An element X reacts with `H_(2)` gas at `200^(@)C` to form compound Y. when Y is heated to a higher temperature, it decomposes to element X and `H_(2)` gas in the ratio of 559 ml of `H_(2)` (measured at STP) for 1.00 g of X reacted. X also combines with `Cl_(2)` to form a compound Z which contains 63.89 peerrcent mass of chlorine. identify X, Y and Z.


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Correct Answer - `X=Ca`
Y=`CaH_(2)`
`Z=CaCl_(2)`

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
If an element X belongs to II group and another element Y belongs to VII group then the compound formed between these elements has fomula : 

 Correct option is  C) X Y2

2 Answers 1 views
CH3 — CH2 — OH reacts with alkaline KMnO4 and heats to form first the compound A, which futher oxidises to form a compound B.

Correct option is  D) Acetic acid

2 Answers 1 views
…………….. flows from a body at higher temperature to a body at lower temperature. 

Correct option is  B) Heat

2 Answers 1 views
1 litre of an ideal gas at 27 °C is heated at constant pressure so as to attain temperature 297 °C.

Correct option is: (B) 1.9 litre

2 Answers 1 views
Equimolar mixture of two gases \( A_{2} \) and \( B_{2} \) is taken in a rigid vessel at temperature \( 300 K \). The gases reacts according to given equations : \[ \begin{array}{ll} A_{2}(g) \rightleftharpoons 2 A(g) & K_{P_{1}}=? \\ B_{2}(g) \rightleftharpoons & K_{P_{2}}=? \\ A_{2}(g)+B_{2}(g) & \rightleftharpoons 2 A B(g) & K_{P_{3}}=2 \end{array} \] If the initial pressure in the container was 2 atm and final pressure developed at equilibrium is \( 2.75 atm \). in which equilibrium partial pressure of gas \( A B \) was \( 0.5 atm \), calculate the ratio of \( \frac{ K _{ p _{2}}}{ K _{ p _{1}}} \). [Given : Degree of dissociation of \( B_{2} \) is greateı than \( A _{2} \) ].

this is the solution!!!! 

2 Answers 1 views
Assertion : Zirconium can be purificed by Van Arkel method. Reason : ZrI4 is volatile and decomposes at 1800K.

(i) Both assertion and reason are true and reason is the correct explanation of assertion. 

2 Answers 1 views
Statement-1 . Sodium reacts with oxygen to form `Na_(2)O_(2)` but potassium reacts with oxygen to form `KO_(2)`. Statement-2 . Potassium is more react

Correct Answer - b Correct explanation . Due to bigger size of `K^(+)` than `Na^(+)`, it has a weak positive field around it which cannot prevent peroxide ion `(O_(2)^(2-))` to combine...

2 Answers 1 views
Assertion (A) : Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide . Reason (R) : Beryllium carbonate is unstab

Correct Answer - A Both A and R are correct and R is the corret explanation of A .

2 Answers 1 views
compound X is tested and the results are shown in the following table. `|{:("Test","Result",),("Aqueous NaOH is added and heated gently.","Gas release

Correct Answer - A It is the correct answer

2 Answers 1 views
An inorganic compound (3c-2e) and (2c-2e) bonds when reacts with `NH_(3)` at a certain temperature, gives a compound X which is isostuctrul x with ben

Correct Answer - (c )

2 Answers 1 views
X