1
IIT-JEE 2012 Paper 1 Offline
Numerical
+3
-0
29.2 % (w/w) HCl stock solution has density of 1.25 g mL -1 . The molecular weight of HCl is 36.5 g mol -1 . The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is
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2
IIT-JEE 2012 Paper 1 Offline
Numerical
+3
-0
The periodic table consists of 18 groups. An isotope of copper, on bombardment with protons undergoes a nuclear reaction yielding element X as shown below. To which group, element X belongs in the periodic table?

$${}_{29}^{63}Cu$$ + $${}_1^1H$$ $$\to$$ $$6{}_0^1n$$ + $${}_2^4\alpha $$ + 2$${}_1^1H$$ + X
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3
IIT-JEE 2012 Paper 1 Offline
Numerical
+3
-0
An organic compound undergoes first-order decomposition. The time taken for its decomposition to 1/8 and 1/10 of its initial concentration are t1/8 and t1/10 respectively. What is the value of $$\left[ {{{{t_{1/8}}} \over {{t_{1/10}}}}} \right] \times 10$$? ($${\log _{10}}2 = 0.3$$)
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4
IIT-JEE 2012 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

A compound MpXq has cubic close packing (ccp) arrangement of X. Its unit cell structure is shown below. The empirical formula of the compound is

IIT-JEE 2012 Paper 1 Offline Chemistry - Solid State & Surface Chemistry Question 13 English

A
MX
B
MX2
C
M2X
D
M5X14
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