important facts of liquid nitrogen

Acetic acid is one of the commonest organic acids and has been known for quite a long time in the form of vinegar. It is also present free in a number of fruit juices. In the combined state it occurs in many oils and essential oils. Formula: CH 3 COOH, IUPAC Name: Ethanoic acid Acetic acid is a co..

Element Fluorides Chlorides Bromides Iodides O OF 2 Cl 2 O, ClO, Cl 2 O 7 Br 2 O I 2 O 5 S S 2 F 2 , SF 4 , SF 6 S 2 Cl 2 , SCl 2 S 2 Br 2 - Se ..

Bakelite is made from phenol and formaldehyde in the presence of a base catalyst. It involves formation of methylene bridges at the ortho and para positions. The reaction starts with the initial formation of ortho and/or para-hydroxymethyl phenol derivatives which further react with phenol to..

Name of vitamin Source Deficiency disease Vitamin A (bright eye vitamin) Fish oil particularly shark liver oil, liver of fresh water fish rice polishing, liver, kidney Xerophthalmia i.e, hardening of cornea of eye Vitamin B 1 (thiamine) Yeast, milk, green vegetables etc..

Group 15 of the Periodic table includes five elements namely nitrogen (N), phosphorus (P), arsenic (As) antimony (Sb) and bismuth (Bi). This group is regarded as nitrogen family. There is a transition from non-metallic to metallic character as we go down the group. ..

Elements of group 13 to 18 of the periodic table are collectively called 'p' block elements. The general electronic configuration of these elements is ns 2 np 1 - 6 . They involve the filling up of 'p' orbitals of their outermost shells, when their 's' orbitals are already filled...

The measurable/visible properties of the system must remain unchanged with time. Once, an equilibrium is reached the properties of the system do not change with time. When equilibrium is attained, there exists an expression of concentrations of the substances involved in equilibrium, which bec..

Choose a multiplication fact shown by the model. => 2 × 4 = 8 or 1 + 5 = 6 or 2 + 5 = 7 or 2 × 5 = 10..

Choose a multiplication fact shown by the model. => 3 × 3 = 6 or 2 + 3 = 5 or 1 × 6 = 6 or 1 + 6 = 6..

Which addition fact would help you to solve 5 - 2? => 2 + 2 = 4 or 3 + 5 = 8 or 3 + 2 = 5 or 3 + 3 = 6..