Last seen: Mar 10, 2022
Correct answer: (a) Flexor
Correct answer: (d) Glenoid cavity
Correct answer: (b) Acetabulum Explanation: There are three coxal bones namely ilium, ischium and pubis. At the point of fusion of these, a cavity...
Correct answer: (c) A-B and remains constant
Correct answer: (d) Liver and muscle
Correct answer: (c) A-2, B-3, C-4, D-1 Explanation: Column I shows types of synovial joints. Column II shows the location where these are present.
Correct answer: (c) Decrease in estrogen Explanation: In osteoporosis, there is decrease in levels of estrogen.
Correct answer: (c) Na and Ca
Correct answer: (b) palm Explanation: Metacarpals are palm bone, they are 5 in number.
Uses of neon gas: (i) It is mixed with helium to protect electrical equipments from high voltage. (ii) It is filled in discharge tubes with char...
Noble gases do not form molecules. In case of noble gases, the atomic radii corresponds to van der Waal's radii. On the other hand, the atomic radii o...
NeF2 does not exist.
(i) Bond dissociation energy usually decreases on moving down a group as the atomic size increases. However, the bond dissociation energy of F2 is low...
(i) XeO3 can be prepared in two ways as shown. 6XeF4 + 12H2O → 4Xe + 2XeO3 + 24HF + 3O2 XeF6 + 3H2O → XeO3 + 6HF (ii) XeOF4 can be prepared usin...
ClO- is isoelectronic to ClF. Also, both species contain 26 electrons in all as shown. Total electrons ClO- = 17 + 8 + 1 = 26 In ClF = 17 + 9 = 26...
XeF2, XeF4, and XeF6 are obtained by a direct reaction between Xe and F2. The condition under which the reaction is carried out determines the product...
(i) 4NaCl + MnO2 + 4H2SO4 → MnCl2 + 4NaHSO4 + 2H2O + Cl2 (ii) Cl2 + NaI → 2NaCl + I2
Let the oxidation state of p be x (i) H3PO3 3 + x + 3(-2) = 0 3 + x - 6 = 0 x - 3 = 0 x = +3 (ii) PCl3 x + 3(-1) = 0 x - 3 = 0 x = +...
Neil Bartlett initially carried out a reaction between oxygen and PtF6. This resulted in the formation of a red compound, O2+[PtF6]-. Later, he real...
(i) Cl2 can be prepared from HCl by Deacon's process. 4HCl + O2 2Cl2 + 2H2O (ii) HCl can be prepared from Cl2 on treating it with water. Cl2 + ...